Here’s what happens . . . .If I try to open the backup catalogs on my laptop (a separate computer from the one that crashed) without moving them from their current location/folders (in backup folders on the hard drives) I get an error message that says the catalog file is not writable (due to incorrect permissions or because another Lightroom application is using the catalog).
This is easily fixed, change the permissions, or remove the .lock file in the same folder as the catalog. (By the way, it would be helpful if you could quote the exact error message in the future)
If I move the catalog backup to the laptop (to a folder location that has unrelated functioning catalogs), I get a message that says the folder cannot be found. UGGGHHH.
Without knowing which folder is being referred to, and without seeing the exact error message, this one is hard to decipher.
Thanks for helping. Ok - I changed the permission on the original backup file (the one on the external hard drive). It will now open in LR3 - and I get the same folder error. But now I realize what it means (it is looking for the folder with DNG files in it - don't I feel silly!). Thanks so much!!!