I find MD's very unstable. About 1 in every 15 or so MD's goes bad (read error, toc error, cannot play, cannot record, cannnot record or play) after they are full of recorded music. In many cases there were 40 to 50 songs recorded off the internet on 1G MD. YIKES! It seems the only way to protect myself is to upload a HiMD to my Mac and then if a MD goes bad I can simply dump the music back onto a new MD. The music I record is all digital. I have tried to trasfer my music digitally from one MD to another one but Sony blocks this. Can I upload music from my HiMD to my Mac, then add it to my iTunes Library, convert it to MP3 so as to take up much less space, then if need be convert it back to WAV and then load it back to a new HiMD? If this is all possible will the recording still be digital? Thanks for any help or advice you can give.