Ah yes, simplr days. My mate was a coder on the spectrum, another mate wrote the compression software used in the "disciple" disk drive. He wrote this program in something like 78 bytes that simply listened to the mic port for a signal and wrote it to memory, at the push of a button it played it back out to the earphone socket. It was while copying some spectrum games one day we accidentally loaded a C64 game, we didn't realise until half way through when somebody noticed it "didn't sound right" but we left it to copy anyway, as an experiment. It actualy worked! in fact it work so well we threw away our spliters and extra tape drives. Serendipity at work! :) For those that will ask the inevitable question about how we got 64K into 48, the answer is simple. The C64 was built with 35K RAM and the rest in ROM, so it fit quite nicely :) later jb