[flash3843]

I apologize for stringing out my replies over several days, but the holidays
are hectic around here!

I followed the suggestion, and plugged in my PRS-505, shut down the Reader s/w when it came up, found the media.xml file, and deleted it. I then rebooted the PRS-505.

The results follow:

1. All the books that were previously on my PRS-505 are still there, but my collections no longer exist. All the books are now in a single collection.

2. In the Sony Reader s/w no books are found in the library , and the device does not show up when plugged in.

3. In Calibre, all the books, with tags, show up in the library, but none show up in the device, nor can any of the books be moved to the device.

So, while I can read my existing books on the device I can no longer add, delete or "collectivize" books on my device.

I seem to be slipping further into limbo.

Any additional suggestions will be greatly appreciated.

Thanks.