Yes, typo on my part. More specifically:
Version: 4.5 (build 2384)
Server: jetty-6.1.x, java 1.6.0_22, Linux (37.6 MB / 69.7 MB)
Here's the log file output from one of these ogg errors:
[2011-10-22 16:15:23,133] INFO PlaylistInputStream - mark listening to "Layla and Other Assorted Love Songs/9 - Why Does Love Got to Be So Sad?.ogg"
[2011-10-22 16:15:23,157] DEBUG TranscodeInputStream - Starting transcoder: [/var/subsonic/transcode/ffmpeg] [-i] [/home/mark/Music/Derek and the Dominos/Layla and Other Assorted Love Songs/9 - Why Does Love Got to Be So Sad?.ogg] [-v] [0] [-f] [wav] [-]
[2011-10-22 16:15:23,186] WARN TranscodingService - Failed to transcode /home/mark/Music/Derek and the Dominos/Layla and Other Assorted Love Songs/9 - Why Does Love Got to Be So Sad?.ogg. Using original.
java.io.IOException: Cannot run program "/var/subsonic/transcode/ffmpeg": java.io.IOException: error=2, No such file or directory
And, now that I look at the log file, problem is obvious. After "apt-get install ffmpeg" everything works fine. It would be good if subsonic issued some kind of warning upon install about this missing dependency.