ARC86 is a CP/M-86 implimenatation of Reimer Mellin's CP/M ARRCPM program. For information on how to use it get the ARCCPM.INF files. As far as I can tell it works correctly under Concurrent CP/M-86 and will use the time set by the DATE program. My Rainbow has an extended Bios function (No. 154) which performs the BDOS function 105. If you have a similar facility then you can use the 'z' qualifier. Eg :- ARC86 ATZ TEST B:NEWFILE There is on bug remaining that I know of which is proving difficult to isolate. On some occasions you may get Turbo Pascal's I/O error 91 because ARC has calculated a sector above the last file it is playing with. You can work around this by inserting the files in a different sequence. (Preferably longest first). Afterwards a list will tell you that a file has a bad header. This, in my short experience, can be ignored and your files have been archived and can be extracted safely. As soon as I get rid of this bug I'll upload the corrected version. Thanks to Reimer Mellin and Peter Spaeth2 for the original effort on the CP/M version. D.J.Weatherall 22-Dec-87