diff --git a/src/d_main.c b/src/d_main.c
index 80bc1c72c..aed861e7d 100644
--- a/src/d_main.c
+++ b/src/d_main.c
@@ -152,6 +152,7 @@ char srb2path[256] = ".";
 #endif
 boolean usehome = true;
 const char *pandf = "%s" PATHSEP "%s";
+static char addonsdir[MAX_WADPATH];
 
 //
 // EVENT HANDLING
@@ -1091,7 +1092,6 @@ void D_SRB2Main(void)
 			// can't use sprintf since there is %u in savegamename
 			strcatbf(savegamename, srb2home, PATHSEP);
 
-			I_mkdir(srb2home, 0700);
 #else
 			snprintf(srb2home, sizeof srb2home, "%s", userhome);
 			snprintf(downloaddir, sizeof downloaddir, "%s", userhome);
@@ -1112,6 +1112,10 @@ void D_SRB2Main(void)
 #endif
 	}
 
+	// Create addons dir
+	snprintf(addonsdir, sizeof addonsdir, "%s%s%s", srb2home, PATHSEP, "addons");
+	I_mkdir(addonsdir, 0755);
+
 	// rand() needs seeded regardless of password
 	srand((unsigned int)time(NULL));
 
diff --git a/src/d_netcmd.c b/src/d_netcmd.c
index 7c3298bf9..a63f28a14 100644
--- a/src/d_netcmd.c
+++ b/src/d_netcmd.c
@@ -812,6 +812,8 @@ void D_RegisterClientCommands(void)
 	CV_RegisterVar(&cv_screenshot_option);
 	CV_RegisterVar(&cv_screenshot_folder);
 	CV_RegisterVar(&cv_moviemode);
+	CV_RegisterVar(&cv_movie_option);
+	CV_RegisterVar(&cv_movie_folder);
 	// PNG variables
 	CV_RegisterVar(&cv_zlib_level);
 	CV_RegisterVar(&cv_zlib_memory);
diff --git a/src/d_netfil.c b/src/d_netfil.c
index 155700807..cac5a2d80 100644
--- a/src/d_netfil.c
+++ b/src/d_netfil.c
@@ -742,7 +742,7 @@ void SV_FileSendTicker(void)
 		if (ram)
 			M_Memcpy(p->data, &f->id.ram[transfer[i].position], size);
 		else if (fread(p->data, 1, size, transfer[i].currentfile) != size)
-			I_Error("SV_FileSendTicker: can't read %s byte on %s at %d because %s", sizeu1(size), f->id.filename, transfer[i].position, strerror(ferror(transfer[i].currentfile)));
+			I_Error("SV_FileSendTicker: can't read %s byte on %s at %d because %s", sizeu1(size), f->id.filename, transfer[i].position, M_FileError(transfer[i].currentfile));
 		p->position = LONG(transfer[i].position);
 		// Put flag so receiver knows the total size
 		if (transfer[i].position + size == f->size)
@@ -818,7 +818,7 @@ void Got_Filetxpak(void)
 		// We can receive packet in the wrong order, anyway all os support gaped file
 		fseek(file->file, pos, SEEK_SET);
 		if (fwrite(netbuffer->u.filetxpak.data,size,1,file->file) != 1)
-			I_Error("Can't write to %s: %s\n",filename, strerror(ferror(file->file)));
+			I_Error("Can't write to %s: %s\n",filename, M_FileError(file->file));
 		file->currentsize += size;
 
 		// Finished?
diff --git a/src/doomdef.h b/src/doomdef.h
index 288c8e7ad..ef7a2f8cb 100644
--- a/src/doomdef.h
+++ b/src/doomdef.h
@@ -138,6 +138,7 @@
 
 #ifdef LOGMESSAGES
 extern FILE *logstream;
+extern char logfilename[1024];
 #endif
 
 //#define DEVELOP // Disable this for release builds to remove excessive cheat commands and enable MD5 checking and stuff, all in one go. :3
diff --git a/src/filesrch.c b/src/filesrch.c
index d132e9fb4..1be74f9b9 100644
--- a/src/filesrch.c
+++ b/src/filesrch.c
@@ -868,7 +868,7 @@ boolean preparefilemenu(boolean samedepth, boolean replayhut)
 					}
 					else if (ext == EXT_TXT)
 					{
-						if (!strcmp(dent->d_name, "log.txt") || !strcmp(dent->d_name, "errorlog.txt"))
+						if (!strncmp(dent->d_name, "log-", 4) || !strcmp(dent->d_name, "errorlog.txt"))
 							ext |= EXT_LOADED;
 					}
 
diff --git a/src/m_argv.c b/src/m_argv.c
index e8bfdd3db..e1046f8a7 100644
--- a/src/m_argv.c
+++ b/src/m_argv.c
@@ -16,6 +16,7 @@
 #include "doomdef.h"
 #include "command.h"
 #include "m_argv.h"
+#include "m_misc.h"
 
 /**	\brief number of arg
 */
@@ -166,7 +167,7 @@ void M_FindResponseFile(void)
 			if (!file)
 				I_Error("No more free memory for the response file");
 			if (fread(file, size, 1, handle) != 1)
-				I_Error("Couldn't read response file because %s", strerror(ferror(handle)));
+				I_Error("Couldn't read response file because %s", M_FileError(handle));
 			fclose(handle);
 
 			// keep all the command line arguments following @responsefile
diff --git a/src/m_misc.c b/src/m_misc.c
index c3b8776b0..405adf493 100644
--- a/src/m_misc.c
+++ b/src/m_misc.c
@@ -23,6 +23,8 @@
 #include <unistd.h>
 #endif
 
+#include <errno.h>
+
 // Extended map support.
 #include <ctype.h>
 
@@ -107,6 +109,9 @@ consvar_t cv_screenshot_folder = {"screenshot_folder", "", CV_SAVE, NULL, NULL,
 static CV_PossibleValue_t moviemode_cons_t[] = {{MM_GIF, "GIF"}, {MM_APNG, "aPNG"}, {MM_SCREENSHOT, "Screenshots"}, {0, NULL}};
 consvar_t cv_moviemode = {"moviemode_mode", "GIF", CV_SAVE|CV_CALL, moviemode_cons_t, Moviemode_mode_Onchange, 0, NULL, NULL, 0, 0, NULL};
 
+consvar_t cv_movie_option = {"movie_option", "Default", CV_SAVE, screenshot_cons_t, NULL, 0, NULL, NULL, 0, 0, NULL};
+consvar_t cv_movie_folder = {"movie_folder", "", CV_SAVE, NULL, NULL, 0, NULL, NULL, 0, 0, NULL};
+
 static CV_PossibleValue_t zlib_mem_level_t[] = {
 	{1, "(Min Memory) 1"},
 	{2, "2"}, {3, "3"}, {4, "4"}, {5, "5"}, {6, "6"}, {7, "7"},
@@ -1080,19 +1085,25 @@ static inline moviemode_t M_StartMovieGIF(const char *pathname)
 void M_StartMovie(void)
 {
 #if NUMSCREENS > 2
-	const char *pathname = ".";
+	char pathname[MAX_WADPATH];
 
 	if (moviemode)
 		return;
 
-	if (cv_screenshot_option.value == 0)
-		pathname = usehome ? srb2home : srb2path;
-	else if (cv_screenshot_option.value == 1)
-		pathname = srb2home;
-	else if (cv_screenshot_option.value == 2)
-		pathname = srb2path;
-	else if (cv_screenshot_option.value == 3 && *cv_screenshot_folder.string != '\0')
-		pathname = cv_screenshot_folder.string;
+	if (cv_movie_option.value == 0)
+		strcpy(pathname, usehome ? srb2home : srb2path);
+	else if (cv_movie_option.value == 1)
+		strcpy(pathname, srb2home);
+	else if (cv_movie_option.value == 2)
+		strcpy(pathname, srb2path);
+	else if (cv_movie_option.value == 3 && *cv_movie_folder.string != '\0')
+		strcpy(pathname, cv_movie_folder.string);
+
+	if (cv_movie_option.value != 3)
+	{
+		strcat(pathname, PATHSEP"movies"PATHSEP);
+		I_mkdir(pathname, 0755);
+	}
 
 	if (rendermode == render_none)
 		I_Error("Can't make a movie without a render system\n");
@@ -1424,7 +1435,8 @@ void M_ScreenShot(void)
 void M_DoScreenShot(void)
 {
 #if NUMSCREENS > 2
-	const char *freename = NULL, *pathname = ".";
+	const char *freename = NULL;
+	char pathname[MAX_WADPATH];
 	boolean ret = false;
 	UINT8 *linear = NULL;
 
@@ -1432,13 +1444,19 @@ void M_DoScreenShot(void)
 	takescreenshot = false;
 
 	if (cv_screenshot_option.value == 0)
-		pathname = usehome ? srb2home : srb2path;
+		strcpy(pathname, usehome ? srb2home : srb2path);
 	else if (cv_screenshot_option.value == 1)
-		pathname = srb2home;
+		strcpy(pathname, srb2home);
 	else if (cv_screenshot_option.value == 2)
-		pathname = srb2path;
+		strcpy(pathname, srb2path);
 	else if (cv_screenshot_option.value == 3 && *cv_screenshot_folder.string != '\0')
-		pathname = cv_screenshot_folder.string;
+		strcpy(pathname, cv_screenshot_folder.string);
+
+	if (cv_screenshot_option.value != 3)
+	{
+		strcat(pathname, PATHSEP"screenshots"PATHSEP);
+		I_mkdir(pathname, 0755);
+	}
 
 #ifdef USE_PNG
 	if (rendermode != render_none)
@@ -2355,3 +2373,104 @@ void M_SetupMemcpy(void)
 	M_Memcpy = cpu_cpy;
 #endif
 }
+
+/** Return the appropriate message for a file error or end of file.
+*/
+const char *M_FileError(FILE *fp)
+{
+	if (ferror(fp))
+		return strerror(errno);
+	else
+		return "end-of-file";
+}
+
+/** Return the number of parts of this path.
+*/
+int M_PathParts(const char *path)
+{
+	int n;
+	const char *p;
+	const char *t;
+	if (path == NULL)
+		return 0;
+	for (n = 0, p = path ;; ++n)
+	{
+		t = p;
+		if (( p = strchr(p, PATHSEP[0]) ))
+			p += strspn(p, PATHSEP);
+		else
+		{
+			if (*t)/* there is something after the final delimiter */
+				n++;
+			break;
+		}
+	}
+	return n;
+}
+
+/** Check whether a path is an absolute path.
+*/
+boolean M_IsPathAbsolute(const char *path)
+{
+#ifdef _WIN32
+	return ( strncmp(&path[1], ":\\", 2) == 0 );
+#else
+	return ( path[0] == '/' );
+#endif
+}
+
+/** I_mkdir for each part of the path.
+*/
+void M_MkdirEachUntil(const char *cpath, int start, int end, int mode)
+{
+	char path[MAX_WADPATH];
+	char *p;
+	char *t;
+
+	if (end > 0 && end <= start)
+		return;
+
+	strlcpy(path, cpath, sizeof path);
+#ifdef _WIN32
+	if (strncmp(&path[1], ":\\", 2) == 0)
+		p = &path[3];
+	else
+#endif
+		p = path;
+
+	if (end > 0)
+		end -= start;
+
+	for (; start > 0; --start)
+	{
+		p += strspn(p, PATHSEP);
+		if (!( p = strchr(p, PATHSEP[0]) ))
+			return;
+	}
+	p += strspn(p, PATHSEP);
+	for (;;)
+	{
+		if (end > 0 && !--end)
+			break;
+
+		t = p;
+		if (( p = strchr(p, PATHSEP[0]) ))
+		{
+			*p = '\0';
+			I_mkdir(path, mode);
+			*p = PATHSEP[0];
+			p += strspn(p, PATHSEP);
+		}
+		else
+		{
+			if (*t)
+				I_mkdir(path, mode);
+			break;
+		}
+	}
+}
+
+void M_MkdirEach(const char *path, int start, int mode)
+{
+	M_MkdirEachUntil(path, start, -1, mode);
+}
diff --git a/src/m_misc.h b/src/m_misc.h
index 658028b44..9e43b20c9 100644
--- a/src/m_misc.h
+++ b/src/m_misc.h
@@ -30,7 +30,7 @@ typedef enum {
 extern moviemode_t moviemode;
 
 extern consvar_t cv_screenshot_option, cv_screenshot_folder;
-extern consvar_t cv_moviemode;
+extern consvar_t cv_moviemode, cv_movie_folder, cv_movie_option;
 extern consvar_t cv_zlib_memory, cv_zlib_level, cv_zlib_strategy, cv_zlib_window_bits;
 extern consvar_t cv_zlib_memorya, cv_zlib_levela, cv_zlib_strategya, cv_zlib_window_bitsa;
 extern consvar_t cv_apng_delay;
@@ -100,6 +100,13 @@ void strcatbf(char *s1, const char *s2, const char *s3);
 
 void M_SetupMemcpy(void);
 
+const char *M_FileError(FILE *handle);
+
+int     M_PathParts      (const char *path);
+boolean M_IsPathAbsolute (const char *path);
+void    M_MkdirEach      (const char *path, int start, int mode);
+void    M_MkdirEachUntil (const char *path, int start, int end, int mode);
+
 // counting bits, for weapon ammo code, usually
 FUNCMATH UINT8 M_CountBits(UINT32 num, UINT8 size);
 
diff --git a/src/sdl/i_main.c b/src/sdl/i_main.c
index 41a9d7cd6..816142d72 100644
--- a/src/sdl/i_main.c
+++ b/src/sdl/i_main.c
@@ -20,12 +20,19 @@
 #include "../doomdef.h"
 #include "../m_argv.h"
 #include "../d_main.h"
+#include "../m_misc.h"/* path shit */
 #include "../i_system.h"
 
-#ifdef __GNUC__
+#if defined (__GNUC__) || defined (__unix__)
 #include <unistd.h>
 #endif
 
+#ifdef __unix__
+#include <errno.h>
+#endif
+
+#include "time.h" // For log timestamps
+
 #ifdef HAVE_SDL
 
 #ifdef HAVE_TTF
@@ -45,6 +52,7 @@ extern int SDL_main(int argc, char *argv[]);
 
 #ifdef LOGMESSAGES
 FILE *logstream = NULL;
+char logfilename[1024];
 #endif
 
 #ifndef DOXYGEN
@@ -125,16 +133,89 @@ int main(int argc, char **argv)
 #endif
 #endif
 
-	logdir = D_Home();
-
 #ifdef LOGMESSAGES
+	if (!M_CheckParm("-nolog"))
+	{
+		time_t my_time;
+		struct tm * timeinfo;
+		const char *format;
+		const char *reldir;
+		int left;
+		boolean fileabs;
+		const char *link;
+
+		logdir = D_Home();
+
+		my_time = time(NULL);
+		timeinfo = localtime(&my_time);
+
+		if (M_CheckParm("-logfile") && M_IsNextParm())
+		{
+			format = M_GetNextParm();
+			fileabs = M_IsPathAbsolute(format);
+		}
+		else
+		{
+			format = "log-%Y-%m-%d_%H-%M-%S.txt";
+			fileabs = false;
+		}
+
+		if (fileabs)
+		{
+			strftime(logfilename, sizeof logfilename, format, timeinfo);
+		}
+		else
+		{
+			if (M_CheckParm("-logdir") && M_IsNextParm())
+				reldir = M_GetNextParm();
+			else
+				reldir = "logs";
+
+			if (M_IsPathAbsolute(reldir))
+			{
+				left = snprintf(logfilename, sizeof logfilename,
+						"%s"PATHSEP, reldir);
+			}
+			else
 #ifdef DEFAULTDIR
-	if (logdir)
-		logstream = fopen(va("%s/"DEFAULTDIR"/log.txt",logdir), "wt");
-	else
-#endif
-		logstream = fopen("./log.txt", "wt");
-#endif
+			if (logdir)
+			{
+				left = snprintf(logfilename, sizeof logfilename,
+						"%s"PATHSEP DEFAULTDIR PATHSEP"%s"PATHSEP, logdir, reldir);
+			}
+			else
+#endif/*DEFAULTDIR*/
+			{
+				left = snprintf(logfilename, sizeof logfilename,
+						"."PATHSEP"%s"PATHSEP, reldir);
+			}
+#endif/*LOGMESSAGES*/
+
+			strftime(&logfilename[left], sizeof logfilename - left,
+					format, timeinfo);
+		}
+
+		M_MkdirEachUntil(logfilename,
+				M_PathParts(logdir) - 1,
+				M_PathParts(logfilename) - 1, 0755);
+
+#ifdef __unix__
+		logstream = fopen(logfilename, "w");
+#ifdef DEFAULTDIR
+		if (logdir)
+			link = va("%s/"DEFAULTDIR"/latest-log.txt", logdir);
+		else
+#endif/*DEFAULTDIR*/
+			link = "latest-log.txt";
+		unlink(link);
+		if (symlink(logfilename, link) == -1)
+		{
+			I_OutputMsg("Error symlinking latest-log.txt: %s\n", strerror(errno));
+		}
+#else/*__unix__*/
+		logstream = fopen("latest-log.txt", "wt+");
+#endif/*__unix__*/
+	}
 
 	//I_OutputMsg("I_StartupSystem() ...\n");
 	I_StartupSystem();
@@ -160,6 +241,10 @@ int main(int argc, char **argv)
 	// startup SRB2
 	CONS_Printf("Setting up SRB2Kart...\n");
 	D_SRB2Main();
+#ifdef LOGMESSAGES
+	if (!M_CheckParm("-nolog"))
+		CONS_Printf("Logfile: %s\n", logfilename);
+#endif
 	CONS_Printf("Entering main game loop...\n");
 	// never return
 	D_SRB2Loop();
diff --git a/src/sdl/i_system.c b/src/sdl/i_system.c
index f75a42117..2ccdec5c4 100644
--- a/src/sdl/i_system.c
+++ b/src/sdl/i_system.c
@@ -3268,6 +3268,48 @@ void I_RemoveExitFunc(void (*func)())
 	}
 }
 
+#ifndef __unix__
+static void Shittycopyerror(const char *name)
+{
+	I_OutputMsg(
+			"Error copying log file: %s: %s\n",
+			name,
+			strerror(errno)
+	);
+}
+
+static void Shittylogcopy(void)
+{
+	char buf[8192];
+	FILE *fp;
+	int n;
+	if (fseek(logstream, 0, SEEK_SET) == -1)
+	{
+		Shittycopyerror("fseek");
+	}
+	else if (( fp = fopen(logfilename, "wt") ))
+	{
+		while (( n = fread(buf, 1, sizeof buf, logstream) ))
+		{
+			if (fwrite(buf, 1, n, fp) < n)
+			{
+				Shittycopyerror("fwrite");
+				break;
+			}
+		}
+		if (ferror(logstream))
+		{
+			Shittycopyerror("fread");
+		}
+		fclose(fp);
+	}
+	else
+	{
+		Shittycopyerror(logfilename);
+	}
+}
+#endif/*__unix__*/
+
 //
 //  Closes down everything. This includes restoring the initial
 //  palette and video mode, and removing whatever mouse, keyboard, and
@@ -3286,6 +3328,9 @@ void I_ShutdownSystem(void)
 	if (logstream)
 	{
 		I_OutputMsg("I_ShutdownSystem(): end of logstream.\n");
+#ifndef __unix__
+		Shittylogcopy();
+#endif
 		fclose(logstream);
 		logstream = NULL;
 	}
diff --git a/src/sdl12/sdl_sound.c b/src/sdl12/sdl_sound.c
index ed1afd8e2..1a7525fee 100644
--- a/src/sdl12/sdl_sound.c
+++ b/src/sdl12/sdl_sound.c
@@ -1435,7 +1435,7 @@ static boolean LoadSong(void *data, size_t lumplength, size_t selectpos)
 
 	if (fwrite(data, lumplength, 1, midfile) == 0)
 	{
-		CONS_Printf(M_GetText("Couldn't write music into file %s because %s\n"), tempname, strerror(ferror(midfile)));
+		CONS_Printf(M_GetText("Couldn't write music into file %s because %s\n"), tempname, M_FileError(midfile));
 		Z_Free(data);
 		fclose(midfile);
 		return false;
diff --git a/src/w_wad.c b/src/w_wad.c
index da82a276d..734308956 100644
--- a/src/w_wad.c
+++ b/src/w_wad.c
@@ -366,7 +366,7 @@ static lumpinfo_t* ResGetLumpsWad (FILE* handle, UINT16* nlmp, const char* filen
 	// read the header
 	if (fread(&header, 1, sizeof header, handle) < sizeof header)
 	{
-		CONS_Alert(CONS_ERROR, M_GetText("Can't read wad header because %s\n"), strerror(ferror(handle)));
+		CONS_Alert(CONS_ERROR, M_GetText("Can't read wad header because %s\n"), M_FileError(handle));
 		return NULL;
 	}
 
@@ -389,7 +389,7 @@ static lumpinfo_t* ResGetLumpsWad (FILE* handle, UINT16* nlmp, const char* filen
 	if (fseek(handle, header.infotableofs, SEEK_SET) == -1
 		|| fread(fileinfo, 1, i, handle) < i)
 	{
-		CONS_Alert(CONS_ERROR, M_GetText("Corrupt wadfile directory (%s)\n"), strerror(ferror(handle)));
+		CONS_Alert(CONS_ERROR, M_GetText("Corrupt wadfile directory (%s)\n"), M_FileError(handle));
 		free(fileinfov);
 		return NULL;
 	}
@@ -410,7 +410,7 @@ static lumpinfo_t* ResGetLumpsWad (FILE* handle, UINT16* nlmp, const char* filen
 				handle) < sizeof realsize)
 			{
 				I_Error("corrupt compressed file: %s; maybe %s", /// \todo Avoid the bailout?
-					filename, strerror(ferror(handle)));
+					filename, M_FileError(handle));
 			}
 			realsize = LONG(realsize);
 			if (realsize != 0)
@@ -548,7 +548,7 @@ static lumpinfo_t* ResGetLumpsZip (FILE* handle, UINT16* nlmp)
 	fseek(handle, -4, SEEK_CUR);
 	if (fread(&zend, 1, sizeof zend, handle) < sizeof zend)
 	{
-		CONS_Alert(CONS_ERROR, "Corrupt central directory (%s)\n", strerror(ferror(handle)));
+		CONS_Alert(CONS_ERROR, "Corrupt central directory (%s)\n", M_FileError(handle));
 		return NULL;
 	}
 	numlumps = zend.entries;
@@ -565,7 +565,7 @@ static lumpinfo_t* ResGetLumpsZip (FILE* handle, UINT16* nlmp)
 
 		if (fread(zentry, 1, sizeof(zentry_t), handle) < sizeof(zentry_t))
 		{
-			CONS_Alert(CONS_ERROR, "Failed to read central directory (%s)\n", strerror(ferror(handle)));
+			CONS_Alert(CONS_ERROR, "Failed to read central directory (%s)\n", M_FileError(handle));
 			Z_Free(lumpinfo);
 			free(zentry);
 			return NULL;
@@ -585,7 +585,7 @@ static lumpinfo_t* ResGetLumpsZip (FILE* handle, UINT16* nlmp)
 		fullname = malloc(zentry->namelen + 1);
 		if (fgets(fullname, zentry->namelen + 1, handle) != fullname)
 		{
-			CONS_Alert(CONS_ERROR, "Unable to read lumpname (%s)\n", strerror(ferror(handle)));
+			CONS_Alert(CONS_ERROR, "Unable to read lumpname (%s)\n", M_FileError(handle));
 			Z_Free(lumpinfo);
 			free(zentry);
 			free(fullname);