I made a utility for myself to backup Diskettes to audio cassette tapes directly and at a pretty high speed but for the Apple II+. It worked but it also suffer

I made a utility for myself to backup Diskettes to audio cassette tapes directly and at a pretty high speed but for the Apple II+. It worked but it also suffered from lack of error correcting / recovery so any errors would ruin the entire backup... I could probably do a lot better if I rewrote it today! :)