Retrospect 2 ran fine on my Mac IIci back in the day. Ah, here are the "Minimum Requirements" off of the side panel on the box: Macintosh Plus, Hard Disk System 6.0.5 (2 MB RAM) or System 7 (4 MB RAM) So a PowerBook 145 should work fine. A PowerBook 100 should also work okay.... You might run into problems with a much later machine or OS and Retrospect 2, although as someone mentioned, later versions of Retrospect will probably read your older tapes just fine. I have a vague memory that when I went to OS 8+ and started using a PCI based Mac I had to upgrade my version of Retrospect, but I'm not certain any more whether that upgrade was necessary or just something I wanted to do--or maybe to get later tape drive support. Anyway, this came up in my emailed saved search for Retrospect on Ebay today <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=230081470236&ssPageName=ADME:B:SS:US:1> which is a sealed version of Retrospect 2.0 with a $5 BIN and $5 shipping. Again, as someone else mentioned, the tough part is going to be coming up with a compatible (with your tape) working tape drive. Also, once you have everything hooked up you'll need to run the "Repair or Recreate a Storage Set" under the Tools menu. Under Retrospect 2 that's a "Tools" sidebar icon and the selection is "Repair/Recreate Catalog". Presumably you no longer have the "Storage Set" file that Retrospect created when it made the tape. So the first thing it will need to do is to scan through the tape and recreate the storage set files for that tape, I think. After that you'll be able to recover the contents. This always seemed like the most clunky aspect of Retrospect to me. Presumably, if you've had a complete hard drive failure, the catalog will be gone (absent multiple hard drives or server backup), so why doesn't it store the catalog file at the end of the tape where it could scan to the end and pick it up there instead of recreating the thing from all the contents of the tape? Perhaps tape can't work that way? Ah well, anyway, there's a copy of R. 2.0 available and it should work on any ancient Mac. They all had SCSI ports (except the very early 128K and 512K and KE but they don't have 2 MB RAM anyway) You just need to find a tape drive. Oh, and OS 6.08 and 6.05 are free downloads from Apple, as well as the version of 7 mentioned earlier, and any of those will work with R. 2.0. So really, you just need a Mac old enough to run early OSs, or find one with a later OS already on board or with OS media. Jeff Walther