I have a 120GB iPod Video 5.5 and have been running into problems with flac tracks skipping ahead to the next song midway through the current song. Not all the time, but after a few/several songs it will happen. Playback with ogg (Q6) files has no problems. I always thought ogg required more processing effort than flac, so was surprised to see this.
I am using an unsupported build posted by nugged (I think, need to confirm that actually), which I needed to get around a 4096 sector error.
However, my question is a general one: is flac playback on iPods known to have problems at times? If it is stable with official builds, I'll look into building a current build with just the sector changes needed and see if things get better.
Oh yeah, I did reset my settings to the default after this happened. However, the problem persists.