Excerpts from david's message of 2010-04-07 21:53:15 +0200:
A friend of mine has a really tiny sandisk one which plays vorbis at
least. I think it's not that uncommon anymore.
Vorbis and flac at least are rather often supported but it's not often
something marketing uses prominently.
With other formats, like wavpack, you'll have less luck.
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