diff -Naur xmms-1.2.10/libxmms/xmmsctrl.c xmms-1.2.10.sid-songpos/libxmms/xmmsctrl.c
--- xmms-1.2.10/libxmms/xmmsctrl.c	2004-02-23 20:31:42.000000000 +0000
+++ xmms-1.2.10.sid-songpos/libxmms/xmmsctrl.c	2004-02-25 07:05:29.000000000 +0000
@@ -422,6 +422,11 @@
 	remote_send_guint32(session, CMD_JUMP_TO_TIME, pos);
 }
 
+void xmms_remote_seek(gint session, gint off)
+{
+	remote_send_guint32(session, CMD_SEEK, off);
+}
+
 void xmms_remote_get_volume(gint session, gint * vl, gint * vr)
 {
 	ServerPktHeader pkt_hdr;
diff -Naur xmms-1.2.10/libxmms/xmmsctrl.h xmms-1.2.10.sid-songpos/libxmms/xmmsctrl.h
--- xmms-1.2.10/libxmms/xmmsctrl.h	2003-06-11 18:44:17.000000000 +0000
+++ xmms-1.2.10.sid-songpos/libxmms/xmmsctrl.h	2004-02-25 07:05:29.000000000 +0000
@@ -42,6 +42,7 @@
 void xmms_remote_playlist_clear(gint session);
 gint xmms_remote_get_output_time(gint session);
 void xmms_remote_jump_to_time(gint session, gint pos);
+void xmms_remote_seek(gint session, gint off);
 void xmms_remote_get_volume(gint session, gint * vl, gint * vr);
 gint xmms_remote_get_main_volume(gint session);
 gint xmms_remote_get_balance(gint session);
diff -Naur xmms-1.2.10/xmms/controlsocket.c xmms-1.2.10.sid-songpos/xmms/controlsocket.c
--- xmms-1.2.10/xmms/controlsocket.c	2004-02-23 20:31:43.000000000 +0000
+++ xmms-1.2.10.sid-songpos/xmms/controlsocket.c	2004-02-25 07:05:29.000000000 +0000
@@ -502,6 +502,10 @@
 				    num < playlist_get_current_length())
 					input_seek(num / 1000);
 				break;
+			case CMD_SEEK:
+				num = *((guint32 *) data);
+				song_seek(num);
+				break;
 			case CMD_SET_VOLUME:
 				v[0] = ((guint32 *) data)[0];
 				v[1] = ((guint32 *) data)[1];
diff -Naur xmms-1.2.10/xmms/controlsocket.h xmms-1.2.10.sid-songpos/xmms/controlsocket.h
--- xmms-1.2.10/xmms/controlsocket.h	2003-06-11 18:44:17.000000000 +0000
+++ xmms-1.2.10.sid-songpos/xmms/controlsocket.h	2004-02-25 07:05:29.000000000 +0000
@@ -33,7 +33,7 @@
 	CMD_GET_VERSION, CMD_PLAYLIST_ADD, CMD_PLAY, CMD_PAUSE, CMD_STOP,
 	CMD_IS_PLAYING, CMD_IS_PAUSED, CMD_GET_PLAYLIST_POS,
 	CMD_SET_PLAYLIST_POS, CMD_GET_PLAYLIST_LENGTH, CMD_PLAYLIST_CLEAR,
-	CMD_GET_OUTPUT_TIME, CMD_JUMP_TO_TIME, CMD_GET_VOLUME,
+	CMD_GET_OUTPUT_TIME, CMD_JUMP_TO_TIME, CMD_SEEK, CMD_GET_VOLUME,
 	CMD_SET_VOLUME, CMD_GET_SKIN, CMD_SET_SKIN, CMD_GET_PLAYLIST_FILE,
 	CMD_GET_PLAYLIST_TITLE, CMD_GET_PLAYLIST_TIME, CMD_GET_INFO,
 	CMD_GET_EQ_DATA, CMD_SET_EQ_DATA, CMD_PL_WIN_TOGGLE,
diff -Naur xmms-1.2.10/xmms/input.c xmms-1.2.10.sid-songpos/xmms/input.c
--- xmms-1.2.10/xmms/input.c	2003-08-08 17:10:44.000000000 +0000
+++ xmms-1.2.10.sid-songpos/xmms/input.c	2004-02-25 07:05:29.000000000 +0000
@@ -306,6 +306,7 @@
 		}
 	}
 	ip_data->playing = FALSE;
+	set_song_position(0, 0, 0);
 }
 
 void input_pause(void)
diff -Naur xmms-1.2.10/xmms/main.c xmms-1.2.10.sid-songpos/xmms/main.c
--- xmms-1.2.10/xmms/main.c	2004-02-23 20:31:43.000000000 +0000
+++ xmms-1.2.10.sid-songpos/xmms/main.c	2004-02-25 07:05:30.000000000 +0000
@@ -678,6 +678,55 @@
 	g_free(filename);
 }
 
+/*\
+|*| Separate song position stuff, for songs without a time length,
+|*|  but that want to be able to seek anyway.
+|*|      
+|*|      Have the input plugin's get_time() function call
+|*|      set_song_position(int pos, int first, int last)
+|*|      to set the slider.  If the slider is dragged,
+|*|      the plugin's seek() is called with the position.
+|*|      (If last <= first the feature is turned off)
+\*/
+
+static int song_pos_cur, song_pos_first, song_pos_num = 0;
+
+void set_song_position(int pos, int first, int last)
+{
+	last -= first;
+	song_pos_cur = pos;
+	song_pos_first = first;
+	song_pos_num = last;
+	if (last <= 0) return;
+	pos -= first;
+	if (pos > last) pos = last;
+	if (cfg.player_shaded)
+		show_widget(mainwin_sposition);
+	show_widget(mainwin_position);
+	hslider_set_position(mainwin_position, (pos * 219) / last);
+	hslider_set_position(mainwin_sposition, ((pos * 12) / last) + 1);
+}
+
+void song_seek(gint off)
+{
+	if (!get_input_playing()) return;
+	if (song_pos_num > 0) {
+		gint newpos = 0;
+		if (off < 0) newpos = song_pos_cur - 1;
+		else if (off > 0) newpos = song_pos_cur + 1;
+		if (newpos < song_pos_first) newpos = song_pos_first;
+		if (newpos > song_pos_first + song_pos_num)
+			newpos = song_pos_first + song_pos_num;
+		input_seek(newpos);
+	} else {
+		gint newpos = (input_get_time() / 1000) + (off / 1000);
+		gint pcl = playlist_get_current_length() / 1000;
+		if (newpos >= pcl) newpos = pcl - 1;
+		if (newpos < 0) newpos = 0;
+		input_seek(newpos);
+	}
+}
+
 gchar *xmms_get_gentitle_format(void)
 {
 	return cfg.gentitle_format;
@@ -757,7 +806,9 @@
 		show_widget(mainwin_stime_min);
 		show_widget(mainwin_stime_sec);
 
-		if (get_input_playing() && playlist_get_current_length() != -1)
+		if (get_input_playing() &&
+			((playlist_get_current_length() != -1) ||
+				 (song_pos_num > 0)))
 			show_widget(mainwin_sposition);
 
 		mainwin_shade->pb_ny = mainwin_shade->pb_py = 27;
@@ -1079,7 +1130,7 @@
 	show_widget(mainwin_sec_num);
 	if (!get_input_paused())
 		playstatus_set_status(mainwin_playstatus, STATUS_PLAY);
-	if (playlist_get_current_length() != -1)
+	if ((playlist_get_current_length() != -1) || (song_pos_num > 0))
 	{
 		if (cfg.player_shaded)
 			show_widget(mainwin_sposition);
@@ -1398,13 +1449,19 @@
 		break;
 	case GDK_Left:
 	case GDK_KP_Left:
+/*
 		if(playlist_get_current_length() != -1)
 			input_seek(CLAMP(input_get_time() - 5000, 0, playlist_get_current_length()) / 1000);
+*/
+		song_seek(-5000);
 		break;
 	case GDK_Right:
 	case GDK_KP_Right:
+/*
 		if(playlist_get_current_length() != -1)
 			input_seek(CLAMP(input_get_time() + 5000, 0, playlist_get_current_length()) / 1000);
+*/
+		song_seek(+5000);
 		break;
 	default:
 	     break;
@@ -2084,6 +2141,16 @@
 
 	pos--;
 
+	if (song_pos_num > 0) {
+		time = ((song_pos_num * pos + 6) / 12) + song_pos_first;
+		tmp = g_strdup_printf("%d", time);
+		textbox_set_text(mainwin_stime_min, tmp);
+		g_free(tmp);
+		tmp = g_strdup_printf("%d", song_pos_first + song_pos_num);
+		textbox_set_text(mainwin_stime_sec, tmp);
+		g_free(tmp);
+		return;
+	}
 	time = ((playlist_get_current_length() / 1000) * pos) / 12;
 	if (cfg.timer_mode == TIMER_REMAINING)
 	{
@@ -2105,6 +2172,10 @@
 
 void mainwin_spos_release_cb(gint pos)
 {
+	if (song_pos_num > 0) {
+		input_seek(((song_pos_num * (pos - 1) + 6) / 12) + song_pos_first);
+		return;
+	}
 	input_seek(((playlist_get_current_length() / 1000) * (pos - 1)) / 12);
 }
 
@@ -2113,6 +2184,14 @@
 	gint length, time;
 	gchar *buf;
 
+	if (song_pos_num > 0) {
+		time = ((song_pos_num * pos + 110) / 219) + song_pos_first;
+		buf = g_strdup_printf("JUMP TO: %d/%d", time,
+				song_pos_num + song_pos_first);
+		mainwin_lock_info_text(buf);
+		g_free(buf);
+		return;
+	}
 	length = playlist_get_current_length() / 1000;
 	time = (length * pos) / 219;
 	buf = g_strdup_printf(_("SEEK TO: %d:%-2.2d/%d:%-2.2d (%d%%)"), time / 60, time % 60, length / 60, length % 60, (length != 0) ? (time * 100) / length : 0);
@@ -2124,6 +2203,12 @@
 {
 	int length, time;
 
+	if (song_pos_num > 0) {
+		time = ((song_pos_num * pos + 110) / 219) + song_pos_first;
+		input_seek(time);
+		mainwin_release_info_text();
+		return;
+	}
 	length = playlist_get_current_length() / 1000;
 	time = (length * pos) / 219;
 	input_seek(time);
@@ -2530,12 +2615,10 @@
 	case MAINWIN_GENERAL_STOPFADE:
 		break;
 	case MAINWIN_GENERAL_BACK5SEC:
-		if (get_input_playing() && playlist_get_current_length() != -1)
-			input_seek((((input_get_time() / 1000) - 5 >= 0) ? (input_get_time() / 1000) - 5 : 0));
+		song_seek(-5000);
 		break;
 	case MAINWIN_GENERAL_FWD5SEC:
-		if (get_input_playing() && playlist_get_current_length() != -1)
-			input_seek(((((input_get_time() / 1000) + 5) < (playlist_get_current_length() / 1000)) ? ((input_get_time() / 1000) + 5) : ((playlist_get_current_length() / 1000) - 1)));
+		song_seek(+5000);
 		break;
 	case MAINWIN_GENERAL_START:
 		playlist_set_position(0);
@@ -3147,7 +3230,7 @@
 					hslider_set_position(mainwin_sposition, ((time * 12) / length) + 1);
 				}
 			}
-			else
+			else if (song_pos_num <= 0)
 			{
 				hslider_set_position(mainwin_position, 0);
 				hslider_set_position(mainwin_sposition, 1);
diff -Naur xmms-1.2.10/xmms/main.h xmms-1.2.10.sid-songpos/xmms/main.h
--- xmms-1.2.10/xmms/main.h	2003-12-07 02:06:43.000000000 +0000
+++ xmms-1.2.10.sid-songpos/xmms/main.h	2004-02-25 07:05:30.000000000 +0000
@@ -85,6 +85,7 @@
 void mainwin_play_pushed(void);
 void mainwin_stop_pushed(void);
 void mainwin_eject_pushed(void);
+void song_seek(gint off);
 
 void mainwin_set_back_pixmap(void);
 
diff -Naur xmms-1.2.10/xmms/plugin.h xmms-1.2.10.sid-songpos/xmms/plugin.h
--- xmms-1.2.10/xmms/plugin.h	2001-07-05 22:35:01.000000000 +0000
+++ xmms-1.2.10.sid-songpos/xmms/plugin.h	2004-02-25 07:05:30.000000000 +0000
@@ -154,4 +154,6 @@
 	void (*render_freq)(gint16 freq_data[2][256]); /* Render the freq data, don't do anything time consuming in here */
 } VisPlugin;
 
+void set_song_position(int pos, int first, int last);
+
 #endif