sansa c200 some ogg files skipped

[tdb]

Hi - I have an sd card filled with appr. 1300 tracks (ogg files)
Those files were are  converted by me from mp3 files (small filesize - quality low). The ogg files are all working fine on my PC and also on my rockboxed clip+ (the same dev built)
On my c200 a lot of the files will not play and even cause the player to hang if I don't let the player automatically skip the file. Already tried to reset settings.

The tracks the player has issues with are not random, they are all from the same album(s). So if one track of the album fails they all fail and vice versa. C200 has lower memory than other players, maybe that causes it to have issues with some tracks? 

[saratoga]

Is this a c200v2?  If so, yes it may not have enough memory to decode all Vorbis variants, although it modern Vorbis files should generally work. 

Does these files have album art?  Removing it would free up some memory. 

[tdb]

yes it is a c200v2. Will check if removing album art helps but probably prefer a codec without issues.
I assume mp3 format is a better option for the c200v2? Or are there alternatives?

[saratoga]

Most codecs other then vorbis and AAC should be fine:

https://www.rockbox.org/wiki/CodecMemoryUsage

[tdb]

OK thanks. I think I might give Opus a try or would you suggest another?

For the C200 I don't care about sound quality but I do like fast shuffle play of tracks from an sd card and of course it needs to be stable. 

[tdb]

Converted to opus without removing album art and it gave a similar result. Removed all tags including the album art from the files and this time the tracks played fine.
Vorbis might play as well without album art, haven' t tried it yet.

[saratoga]

I suspect the problem is actually the album art.