> When I tried to drag and drop ZIPS or even unzipped ROMS into the scanner window
> on 3.62b it wouldn't rebuild the roms like it usually does.
>
> I manually merged the roms and it detected that the now manually-merged roms
> were no longer missing.
>
> Ironically, when it tried to rebuild missing sets from the scanner window it
> caused the zips in the ROMS directory to have an invalid zip header (and the ZIP
> file size was only a few k instead of the correct size).
>

Same problem here!! here is a sample of the error message:

Corrupt Zipfile:D:\My Emulation\Roms\Multiple Arcade Machine Emus\MAME - Roms\New - changed v0.93\acombat.zip | Reason: UNKNOWN LOCAL FILE HEADER
Corrupt Zipfile:D:\My Emulation\Roms\Multiple Arcade Machine Emus\MAME - Roms\New - changed v0.93\lithero.zip | Reason: UNKNOWN LOCAL FILE HEADER
Corrupt Zipfile:D:\My Emulation\Roms\Multiple Arcade Machine Emus\MAME - Roms\New - changed v0.93\rdft2.zip | Reason: UNKNOWN LOCAL FILE HEADER
Corrupt Zipfile:D:\My Emulation\Roms\Multiple Arcade Machine Emus\MAME - Roms\New - changed v0.93\sprmatkd.zip | Reason: UNKNOWN LOCAL FILE HEADER
Corrupt Zipfile:D:\My Emulation\Roms\Multiple Arcade Machine Emus\MAME - Roms\New - changed v0.93\suprmatk.zip | Reason: UNKNOWN LOCAL FILE HEADER
Corrupt Zipfile:D:\My Emulation\Roms\Multiple Arcade Machine Emus\MAME - Roms\New - changed v0.93\turbosub.zip | Reason: UNKNOWN LOCAL FILE HEADER