Thanks!. A combination of old (datasette) and new (SD2IEC) stuff

Cheers
I think it is better if you place your questions in the corresponding categorie (it is more likely you'll get a proper answer if you ask there).
Yes, you can save more than one program in a tape but youll need to forward the tape to the point where last program ends. For that, it is a good practice to write down start/end cassete counter every time you save a new program to a tape.
You can get information about that topic in following post:grondinm wrote: ↑Thu Dec 10, 2020 12:32 pm Other questions are around the conversion/transfer of .prg/.tap files to .wav then recording to a cassette. Is this something i should expect to work. I have found some software to do the conversion and while it works in an emulator i have not had the chance to try and record to a cassette yet. Plan on doing that tonight.