For Cacko 1.23 full, partition at least 32MB.
For Cacko 1.23 Lite, partition at least 19MB.
I'm sure the reason maslovsky says "at least", is because some older Zauri can have bad blocks and may need a couple more megabytes to hold the ROM
Now if you partition to a much larger number, such as 45MB, you're wasting space on flash. 45 - 32=13
You've lost 13MB, because you won't have access to it once the ROM is flashed.
You can delete all the stuff on the FAT partition (HDA3)
But I would back it up somewhere, because some of the Maps are not on the CD-ROMs.
I just copied the entire contents to my PC. I'll archive it to DVD later.
Here's the Cacko Full thread. It's pinned above.
https://www.oesf.org/forums/index.php?showtopic=15820