Jim Lad says "save the files in MP3 format"

This is not the best way. If you record these MP3 files to CD. you can only play back on a system that will play MP3s and you will NOT have a 'standard audio CD' - however many CD players, even ones in car radios are now available that will play this sort of 'MP3 CD'.

One advantage though, is that you can fit much more on a standard CDR than in the 'standard audio CD' format.

If you want to be able to play the resultant recorded CD in a 'normal audio CD player' then you need to have the sound format in a compatible one with that which is recorded onto the CD. The MP3 format 'throws away' large chunks of the sound - according to a special formula which guesses that th e human ear/brain combination also throws away some information while listening.

If you transform to MP3 at any stage, you will need to transform back - some CD recording programs can do this automatically.

I would recommend, especially if you want 'archival type' recordings, that you put the original conversion into the correct audio format that you will transform and put on the CD.

Somebody who knows more than me will be along soon to tell you exactly what to do...