Custom Music in SmackDown vs. Raw 2007 (PSP): Not Supported

You cannot add custom music to SmackDown vs. Raw 2007 on PSP. The game reads audio exclusively from its encrypted UMD filesystem; no user-accessible music folder, no custom soundtrack feature, no memory stick audio streaming.

Why It's Impossible (Officially)

• PSP game audio is in .at3 (ATRAC3) or .vag format inside PKG/ISO archives.
• No "Custom Soundtrack" API support in this title (unlike Wipeout Pure, Ridge Racer, FIFA 07).
• Modding requires CFW, ISO extraction, audio re-encoding, repacking, and resigning — high risk of corrupting the ISO or triggering anti-piracy checks.

Workarounds

• External Player: Phone/MP3 player + headphones under headset. Mute in-game music (Audio settings → Music Volume = 0), keep SFX/Commentary.
• PSP Music Player (XMB): Play music from Memory Stick → Home → Music → Play → Launch Game. Does not work in most games (audio driver exclusive). SvR 2007 kills background audio.
• Adrenaline / CFW + CWCheat: Some cheat plugins claim "custom soundtrack" by hooking sceAudio — unstable, game-specific, often breaks SFX.

Games That Do Support Custom Soundtracks on PSP

• Wipeout Pure / Pulse, Ridge Racer, ATV Offroad Fury Pro, FIFA 07–10, MLB The Show (some), ModNation Racers.

For SvR 2007: mute music, use Bluetooth speaker or wired splitter for external audio. Safest, zero risk.