>>Well, I'm curious now. Does PACK reclaim any space originally occupied by the table as it is working, or does it need free space as large as the non-deleted records?
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>I don't think so, AFAIK, it moves all non-deleted records to a Temp file. Its renames the old table, renames the new table to the old table name and destroys the old temp table. If it does anyhting "partial" in between like I think you're saying I really doubt it.

You're exactly right. It copies the non-deleted record to a temporary file, deletes the original, then re-names the temporary. It's easy enough to check. Simply look at the Date Created date/time stamp on the file. It is possible (and this is the only problem I've ever run into with PACK) that there might not be sufficient disk space to perform this operation. If the table resides on a LAN, the temporary file goes to whatever drive/directory that VFP stores its temp files. There may be plenty of space on the network, but the user still might not be able to perform the operation if their local drive is close to full.