[todwatts]

davidfor>formats:"=EPUB" and formats:"=MOBI"

Worked like a charm! Thanks. About drove myself crazy looking one at a time for the 32 books stored in multiple formats in a 4000 library library.

I know deleting multiple formats are a small space saver ... but I back up my library to various external harddrives ... some of which are pretty tight.

You guys are GREAT!

chaley>"formats:#>1"

Thanks for that! Even though I've used boolean searches in dBASE, I didn't realize Calibre was so powerful.

Thanks for all the help!