when using an external cuesheet to reference parts of a multi-track audio file,
the last track referenced is missing an ending time, resulting in an invalid
anchor. some transcoding methods, (Flac for one) don't deal well with an ending
time (0:00 in this case) that is less than the starting time.

an example (using --d_source)...

2005-02-28 22:40:28.2145   Found command: [flac] -dcs --skip=$START$
--until=$END$ $FILE$ | [lame] --resample 44100  --silent -q$QUALITY$ -b$BITRATE$
- -              
2005-02-28 22:40:28.2164 Matched Format: mp3 Type: flc Command: [flac] -dcs
--skip=$START$ --until=$END$ $FILE$ | [lame] --resample 44100  --silent
-q$QUALITY$ -b$BITRATE$ - - 
2005-02-28 22:40:28.2165 openSong: this is an flc file:
file:///var/audio/cue-test/external/withtags/Tori%20Amos%20-%20Winter.flac#983.24-0
2005-02-28 22:40:28.2165   file type: flc format: mp3 inrate: 775.284219205071
maxRate: 320
2005-02-28 22:40:28.2166   command: [flac] -dcs --skip=$START$ --until=$END$
$FILE$ | [lame] --resample 44100  --silent -q$QUALITY$ -b$BITRATE$ - -         
          
Use of uninitialized value in substitution (s///) at
/usr/src/slim/trunk/server/Slim/Player/Source.pm line 1336.
2005-02-28 22:40:28.2176 Using command for conversion:
"/usr/src/slim/trunk/server/Bin/i386-linux-thread-multi/flac" -dcs
--skip=16:23.24 --until=0:00.00 "/var/audio/cue-test/external/withtags/Tori Amos
- Winter.flac" | "/usr/bin/lame" --resample 44100  --silent -q -b320 - - & |
2005-02-28 22:40:28.2257 Streaming with format: mp3
Tori Amos - Winter.flac: ERROR, --until value is before --skip point
Assuming raw pcm input file