When you want to create Commodore 64 tapes, this window is shown.

PRG2WAV window

Output format section:

The average bit duration affects the speed of the Turbo Tape part. A zero bit will be 20% shorter than the average, while an one bit will be 30% longer than the average. A shorter value means faster, but more unreliable, loading. 263 is the recommended value: it will create programs compatible with the standard Turbo Tape 64, a loader that proved fast and reliable since 1983. It is only recommended to use values lesser than 263 when creating TAP files to be loaded by emulators: it is unlikely those programs will load on a real datassette. Values greater than 263 will give a slower, but more reliable loading.

Raw mode will not write a fast loader before the program in fast mode (meaning that the program will not be loadable with a simple LOAD, in order to load it you need to load a Turbo Tape 64-compatible loader yourself), and will not write a header chunk with name, start address and end address before the data chunk in slow mode. Only recommended to expert users. Everyone else, better keep this unchecked.

Machine lets you choose the model you intend to load the tape on. If you choose VIC20, only the slow option will be available.

Output to section:

Advanced options section: these settings will be ignored if output is a TAP file After you chose the right values for the options (or if you are satisfied with the defaults) press OK. You will be asked the input PRG, P00 or T64 file. If the T64 file has more than one entry, you will have to choose the entry too. After that, if the output you chose was a TAP or WAV file, you will have to choose its name. Then the conversion will start: press Cancel to stop it, or wait until the end.