Fantastic! Thank you very much. I will be in touch. -- JC

Thank you for the comment! I don't know of any such setting. At the same time, I rarely ever view the directory in Browser Mode, because the truncation to 16-character file names is less useful and informative than simply browsing the directory on the Pi1541's OLED screen. From a quick test, it seems as though standalone PRG files require the .PRG extension in order for the Pi1541 to recognise them as such for the purpose of *mounting* them into Emulation Mode. Unmounted extensionless PRGs will load in Browser Mode using the LOAD command, but that's to be avoided, since Browser Mode is limited to using the default slow KERNAL routines (and trying to load a PRG in Browser Mode with a fast-loader enabled will probably just freeze your computer). -- JC

Indeed! On PC, DirMaster by Style is a good alternative to VICE for making blank 1541 disk images *if* you only want D64s... my understanding is that its support for G64 is limited to reading existing files. -- JC

I have created many D64s on my Pi1541, and never encountered the behaviour you describe. In your example, you're entering line 10, but receiving a syntax error in 0 -- so the computer thinks there is a BASIC program in RAM with an erroneous line 0, and thus never reaches line 10. I cannot fathom why issuing the N0 command to create a disk image would suddenly make a BASIC program appear in memory, but your workaround suggests you're getting the same line numbers consistently. I would personally LIST the program out of curiosity to see what is there. Regardless, the NEW command would probably be a faster way of eliminating the lines for new program entry, rather than deleting them individually. :) -- JC

That’s because you had a directory listing in memory before you entered your basic program. Just type type new and press return to clear the memory before entering any basic programs, or do as you did and remove the lines one by one afterwards. 🙂 (You can also avoid this by using a fast loader or similar that allows you to list disk directories without storing them in memory) Edit: I found out by doing the same mistake 🙂