I'd probably tend to use COPY TO for most situations instead, as it has more clauses available like for DB, CDX, and *just in case* something goes wrong, you still have the original.

The file we are coping is a temp database that we want saved so if they go into the app they have a choice of regernating or looking at the saved data. Currently we use the COPY TO WITH CDX but we were trying to get it faster since I assumed FoxPro didn't just do a DOS copy I since the table I'm coping could have a filter - this one doesn't.

Back in FoxPro 2.6 if you tried the rename across different drives you would get the error message "Attempt to move file to different device." So I didn't know if it now works or I shouldn't use an undocumented feature.