Are you refering to those files that don't show a bit rate? That is difficult to answer. Test them with your player before doing anything with them. If they play, then fine, you can burn them, otherwise they might be corrupt or ... ??? Sometimes they're fine, sometimes not. I believe this generally happens as a result of some other gnutella programs that don't translate the information correctly. Perhaps originating from a totally different p2p network. So my advice is to test 1st. But I'd tend to choose others if there's a choice. In my iTunes library, I have a no. of files with no bit rates that don't play. Some of those are ogg vorbis which is fine b/c I use a special 3rd party plug-in to play them & some might not be able to work with that plug in but ... there's some I've tested out with other players that simply don't work!