I'm looking to convert all my WAVs into OGG to reduce file size. Unfortunately I use WINMPQ so I can no longer delete sound files via the sound editor in SCMDRAFT.

Deleting the WAVs in WINMPQ does not actually delete them out of the map.

Anyone got any solutions on how to do this?

Can't you kill the wavs using winMPQ, add the new ogg files, and use the string editor to edit the sound filename paths? (Since the strings will stick around as long a trigger references them)

Deleting WAVs via winMPQ doesn't actually delete them (filesize stays the same which means they are still in there somewhere).

You probably need to run an optimize or compact or similar command in winmpq to reduce the filesize.