Can anyone recommend a good free one for the PC?
Things that I'd like:
Ability to tag photos and have a relationship between tags. For example: nudi and nudibranch are synonyms, "Spanish shawl" and "Chromodoris annae" are types of nudibranch. So if I searched for nudi I'd get those that are tagged with "Spanish shawl" and "Chromodoris annae" but if I searched for "Spanish shawl" I wouldn't get "Chromodoris annae".
Ability to create albums based on tags and dates. For example: For my Honduras trip I'd select them by date. But I could also create a nudibranch album.
Directory structure and albums are not associated. Or at least the ability for albums to ignore directory structure.
Ability to associate the RAW file with the processed file so that they don't show up twice.
Ability to view DNG files.
Either that or I'm gonna write my own