PSX Doom MAP60-64 PAD files

[Tristan]

When I looked through the contents of the PSX Doom disc, I came across 5 files, MAP60.PAD through to MAP64.PAD
I initially thought these might be lost maps, but they're all exactly 32768 bytes, which basically destroys that theory.

I haven't checked the Final Doom disc, but I suppose there might be some there too. Anyone know exactly what these are and why they're there?

[StevieWolfe]

Placeholders maybe? I honestly don't have a clue what they could be for but I just ran my copy of PSX Doom through as well and I'm seeing the same thing.

[Jaxxoon R]

Could just be files used for padding.