Originally Posted by jackie_w
The other concern I would have is that if this, f207657a-2b88-4763-95db-f37c0e536782, is an example of aforesaid uuid, it would create filenames much longer than I had in mind. Perfect for internal usage but no more meaningful to a user than my current basic calibre_covernn.jpg
ouch - let's not go there. I vote to stay with calibre_covernn.
I think now that 99 is plenty - reasoning that only one cover is used per sleep cycle, so a daily sleep would take 3+ months to cycle thru all 99 - and if my maths is up-to-speed you'd expect to go 50 sleep cycles on average before seeing the same cover twice via random selection.
that's surely enough variety; fans of cover art would doubtless have started some new books & changed their cover sets anyway within that period.