Hello!
Dukes of Hazzard, The - Return of the General Lee SLES_527.47 (hex codes inside)
Gene Troopers SLES_536.44
Hidden Invasion SLUS_203.01
L.A. Rush SLES_534.19 (hex codes inside)
Magic Pengel - The Quest for Color SLUS_205.93 ( drawing not affected.looks playable for me)
Ready 2 Rumble Boxing - Round 2 SLES_500.10
Ready 2 Rumble Boxing - Round 2 SLUS_200.54 updated
RedCard SLES_507.11 (hex codes inside)
Shaman King - Power of Spirit SLUS_209.53
Star Wars - Episode III - Revenge of the Sith SLUS_211.43
Terminator 3 - The Redemption SLES_522.83 minor hud problem (hex codes inside)
Tiny Toon Adventures - Defenders of the Universe SLUS_201.83
Tony Hawk's Downhill Jam SLUS_214.56 mix between hor+ and vert- to avoid fish eye effect in splitscreen mode (hex codes inside)
ws patches.zip (Size: 6,72 KB / Downloads: 239)
Also
NARC,King Arthur and Transformers 2004 have native widescreen support.
And it seems
Dropship - United Peace Force
Marvel Nemesis: Rise of the Imperfects
Wakeboarding Unleashed featuring Shaun Murray
Reign of Fire
doesn't work with pcsx2.