6) FORMAT FORMAT /H In DOS 3.30 (I don't know about other versions), FORMAT /H will cause the format to begin immediately after pressing Y in response to "Format another?", rather than displaying "Place disk to be formatted in drive A: and press Enter" on a second and subsequent disks. Mitch Ames On 5.0 it comes back as "invalid switch". John Mudge FORMAT A: /AUTOTEST The autotest parameter will allow format to proceed, checking existing format (unless the /u parameter is also present) and proceeding with the format. All this will take place with no delay and no waiting for user input. It will also end without pausing. It will not ask for a volume label or whether to format another diskette. WARNING! This procedure will also work on hard drives! Be very cautious if you plan to use this feature. Wayne Woodman Problem is that it won't take any other switches like /U, /S or /Q which is a bit of a shame really. Peter Lovell With Dos 5 it certainly takes /u and /s as I have used it, in fact I think /u is required if the disk is not pre-formatted as the drive hangs up otherwise. I would agree about /q though, this does not work and gives the error message you quote. Terry Kreft FORMAT/U is not available in DOS 3.30 Mitch Ames FORMAT C: /BACKUP This week I've read some articles in Dutch computer magazines about MUF's which are very interesting (if you don't already know about them). I already knew the FORMAT option /AUTOTEST, but new to me was the /BACKUP option. EXAMPLE: FORMAT A: /BACKUP It seems to work exactly like /AUTOTEST, but it DOES ask for a volume label. Willem Van.den.broek FORMAT/SELECT is like DOS-Mirror ... for safety-fanatics only FORMAT/SELECT/U makes disks unreadable (remember the U) Reinhard Kujawa Info from The German magazine PC PRAXIS FORMAT A: /SPACE On IBM DOS v6.01 the command: FORMAT A: /SPACE puts a 12288 byte file named MIRROR.FIL on the disk ... So, the command: FORMAT A: /U /SPACE just ruins the durn diskette! A subsequent "DIR A:" gives you a: General failure reading drive A Abort, Retry, Fail Vernon Frazee ===============================================================================