I recently put together the EPIC STRUGGLE playlist featuring the longest songs in my iTunes library (excluding of course 100 Proof Band osngs). I ended up editing out multiple songs from one band (I didnt want 100 Acid Mothers songs in here), I also kind of kept it to songs over 7:30. Here's what I came up with, listed in order of longest to shortest running time. Granted this is all based on digital copies of songs I have, none of my records were put into the formula.

If you want to trade me a cd for a copy of this, let me know
VELCR0

song/running time/artist
Flying 26:30 UFO
Penumbra 22:42 Steamhammer
Bayangobi 20:24 Acid Mothers Guru Guru
Dead Man 17:28 Josefus
Metempsychosis 16:51 Arzachel
The Light From Deep Darkness 14:40 Eloy
celestial highway II 13:48 skullflower
Lonesome Crow 13:29 Scorpions
Time We Left 13:20 Hawkwind
Future Of The Past 12:38 The Litter
Karmic Dream Sequence 12:37 Goldenrod
Make-Up 12:24 Nudity
Time Has Come Today 11:06 Chambers Brothers
Going Blind 10:29 The Old Man And The Sea
Best Suit 10:15 Clark-Hutchinson
Dance and Volcano 10:00 Gomorha
Uranus 9:45 GÄA
Midnight Sun 9:43 Human Instinct
Chamber Maid 9:39 Pink Fairies
Rice Pudding 9:38 Armaggedon
In Spit of Harry's Toenail 9:27 Gnidrolog
Evil Woman 9:13 Spooky Tooth
Death Warmed Up 9:11 High Tide
Through With You 9:10 The Lemon Pipers
In Circles 9:09 T2
Remember 9:04 Truth And Janey
Reincarnation 8:49 PAGAN ALTAR
Nude Disintegrating Parachutist Woman 8:41 Budgie
unknown track name 8:34 Banchee
Trieulogy 8:12 KAK
Slip Inside This House 8:03 Roky Erickson
Satori Part IV 7:58 Flower Travelin' Band
Got A Bone Of My Own 7:49 Mournin´
Melvin Laid An Egg 7:28 Bloodrock