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I have two unknown files called Desktop DB and Desktop DF at the root of an external HD.

The drive is formatted HFS+ and as far as I can remember has only ever been connected to a few Macs.

Both files are binary so I cannot really read them very easily. But if I less them i see some text referring to Adobe Photoshop and image sizes.

What are these files? Is it OK to delete them ?

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@slhck Are you sure about that retagging, given the answer? – Daniel Beck Jan 30 '12 at 14:17
@DanielBeck Whoops, sorry. Thanks for watching out. – slhck Jan 30 '12 at 14:18
up vote 2 down vote accepted

They are hidden files created & used by Mac OS 6 to 9 (so pre-Mac OS X, if I understand correctly). See Apple's KB and your favourite search engine for more info.

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