Encountered 'FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC' in FLAC File

[chinobar]

I'm sorry for the odd title, that's the output dMC gives me when i try to convert some flac files.

Error converting to ogg vorbis, '---.flac' to '---.ogg'
Encountered 'FLAC__STREAM_DECODER_SEARCH_FOR_FRAME_SYNC' in FLAC File '---.flac'

It happened for about 15 files, and this when i tried to convert about 50 files at the same time. But when i took those who experienced this error and did them 1 by 1 most of them worked, but i have 4 files which i can't convert.
The whole file doesn't get converted, there is some error during the conversion. So it can be played after the error it's just that the whole file isn't there, the end is cut off.

Anyone know what i could do to get them working?