ShredDB is an experimental .shred library, I removed the audio so it's pretty useless. You can find the source .psarc files here.

Song	Artist	Play	Shred	Length	Album	Year	Tuning	Uploader	Updated	Delete
Under A Killing Moon	Thrice			2:46	Artist In The Ambulance	2003	D Drop C	mute	1970-01-01
Under Control	The Strokes			3:09	Room on fire	2003	E Standard	mute	1970-01-01
Underneath the Gun	Limp Bitzkit			5:50	Results May Vary	2003	Custom Tuning	mute	1970-01-01
Understand	Asian Kung-Fu Generation			3:48	Kimi Tsunagi Five M	2003	E Standard	mute	1970-01-01
Unholy Confessions	Avenged Sevenfold			4:48	Waking The Fallen	2003	Drop D	mute	1970-01-01
Unicorn	Altaria			3:32	Invitation	2003	E Standard	mute	1970-01-01
United States of Whatever	Liam Lynch			2:10	Fake Songs	2003	E Standard	mute	1970-01-01
Unleash Hell	Norther			4:17	Mirror Of Madness	2003	E Standard	mute	1970-01-01
Unorthodox Manifesto	Dimmu Borgir			7:28	Death Cult Armageddon	2003	D Standard	mute	1970-01-01
Unreleased Track Acoustic	Yasushi Ishii			0:57	Hellsing OST	2003	E Standard	mute	1970-01-01
Unrockbar	Die Arzte			4:03	geräusch	2003	Eb Standard	mute	1970-01-01
Unrockbar	Die Ärzte			3:55	Geräusch	2003	Eb Standard	mute	1970-01-01
Unstable	Adema			3:21	Unstable	2003	C Drop Ab	mute	1970-01-01
Until the Day I Die	Story of the Year			4:01	Page Avenue	2003	Drop D	mute	1970-01-01
Use Your Fist And Not Your Mouth	Marilyn Manson			3:42	The Golden Age of Grotesque	2003	E Standard	mute	1970-01-01