> That's because the FAT file system used by CP/M didn't allow lower case letters, at all. That's not true. You could use lowercase file names. Just fire up

> That's because the FAT file system used by CP/M didn't allow lower case letters, at all. That's not true. You could use lowercase file names. Just fire up MS-BASIC, and save your file as "test.bas". You now have a lower case file name. The problem is that all of the CCP utilities implicitly upshifted everything from the command line. So, with the stock set, you were out of luck. You can go back into BASIC and KILL the file, so all was not lost. But, the file system was perfectly capable of coping with lower case file names, just nothing else was.