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and for anybody who Reads this and wonders what the full list of files and the oddities to be aware of are:

1. DOOM.wad  - (Ultimate Doom for the extra levels but the earlier non BFG edition "Uncensored" version)
2.  DOOMu.wad (The Unity Version just so smoosh can take the widescreen stuff)
3. DOOM2.wad (Again the earlier "Uncensored" version)
4. DOOM2u.wad (The Unity Version just so smoosh can take the widescreen stuff)
5. "MASTER LEVELS".wad's (20x Separate Level Files)
6. NERVE.wad (Because Xbox BFG edition Levels)
7. NERVEu.wad (The Latest 1.3 Version so smoosh can take the widescreen stuff)
8. SEWERS.wad (Because Xbox Extras - from id games Archive)
9. BETRAY.wad (Because Xbox Extras - from id games Archive)
10. TNT.wad (The earlier "Uncensored" and "fixed" version with the restored Key Card, from GoG)
11. TNTu.wad (The Unity Version just so smoosh can take the widescreen stuff)
12. PLUTONIA.wad (Because the Rest of Final Doom)
13. PLUTONIAu.wad (The Unity Version just so smoosh can take the widescreen stuff)
14. SIGIL.wad (The "non-compatible" v1.21 Version - better for GZ Doom etc, from Romero.com)
15. SIGIL_Shreds.wad (Because Doom Metal from Romero.com)