Cubase 5 Studio MP3 export incompatibility

I have created several MP3 files by exporting from C5Studio which play fine on a computer but are only silent on other devices. Sometimes the file appears to play only for a few seconds. Sometimes, the file doesn’t show up on the other player. I’ve seen a few posts mentioning ID3 tag problems with C4 versions. Is this a known problem with C5Studio? Has anyone else encountered this problem and found a fix? I’d love to know how to make this work.