BBCで放送されたラジオ・ドラマ『銀河ヒッチハイク・ガイド』第１〜第５シリーズはカセット及びCDとして発売されている。以下は、CDにつけられた目次である。
＜第１シリーズ＞ The Primary Phase 計２時間55分
CD１
第１話 Fit the First 01 This Is The Story 2:08 02 You've Got To Build Bypasses 2:00 03 A Strange Coincidence 3:35 04 Six Pints Of Bitter 1:17 05 On This Particular Thursday 2:30 06 Let Them Have Their Fun 1:51 07 People of Earth, Your Attention Please 1:55 08 I Bought Some Peanuts 1:31 09 The Hitchhiker's Guide To The Galaxy 3:06 10 What The Devil's That? 1:47 11 The Babel Fish 1:39 12 What An Extraordinary Book 1:38 13 Vogon Poetry 3:32 第２話 Fit the Second 14 Far Out In The Uncharted Backwaters 2:46 15 Your Very Lives In Your Hands 2:04 16 The Girls? The Leather? The Machismo? 3:01 17 The Hitchhiker's Guide To The Galaxy 1:40 18 Perhaps We Died 3:17 19 The Infinite Improbability Drive 2:01 20 5 To 1 Against And Falling 1:57 21 The Encyclopaedia Galactica 0:53 22 Select Your Own Re-Entry Point 3:00 23 Has The Big Z Finally Flipped? 3:13 24 Glad To Be Of Service 4:23 CD２
第３話 Fit the Third 01 Far Back in the Mists 2:46 02 In Orbit Around It 1:23 03 Arthur Dent had Basically Assumed 2:10 04 The 5 Million Year Old Tape Recording 2:48 05 One of our Heroes Sustains a Slight Bruise 2:31 06 A Sperm Whale had Suddenly been Called 2:04 07 The Mind of a Bowl of Petunias 3:07 08 This is Really Spooky 0:46 09 The Hitchhiker's Guide to the Galaxy 2:10 10 Night is Falling 3:07 11 An Important and Popular Fact 4:49 第４話 Fit the Fourth 12 Forced to Resort to Astonishment 3:12 13 Life, the Universe, and Everything 3:52 14 Philosophers 3:29 15 Seven-and-a-Half Million Years Later 4:21 16 So There you Have It 2:24 17 It is of Course Well-Known 2:29 18 Welcome to Lunch, Earth Creature 4:33 19 We've got you Covered 4:56 CD３
第５話 Fit the Fifth 01 In the beginning 3:21 02 The Restaurant at the End of the Universe 3:37 03 The end of history itself 8:05 04 Marvin and the carpark 3:01 05 The moment you've all been waiting for 1:16 06 The Hitch-Hiker's Guide to the Galaxy 4:07 07 You can't control it 6:06 第６話 Fit the Sixth 08 The history of every major galactic civilisation 2:03 09 The Admiral's flagship 3:14 10 The Hitch-Hiker's Guide to the Galaxy 1:49 11 The prospect of death 2:45 12 Far from its starting point 1:28 13 The place is full of sarcophagi 1:09 14 Our planet was doomed 5:35 15 The Hitch-Hiker's Guide to the Galaxy 2:03 16 We've made a discovery 4:18 17 Q scores 10 6:10
＜第２シリーズ＞ The Secondary Phase 計２時間55分
CD１
第７話 Fit the Seventh 01 There is a theory 3:26 02 Hitch-hiking, what do they know? 1:43 03 I've recovered 1:55 04 It is of course perfectly natural 2:12 05 There must be some way 3:14 06 The Hitch-Hiker's Guide to the Galaxy 0:53 07 Thanks for the ride, guys 1:56 08 Several hours later 1:59 09 Trillian also effected a fortuitous escape 3:29 10 Modern elevators are strange and complex entities 1:36 11 The future I was so worried about 7:19 第８話 Fit the Eighth 12 The universe continued unabated 3:55 13 No food 2:30 14 Two million years backwards in time 1:21 15 Perhaps we could wave your towel 1:43 16 The Hitch-Hiker's Guide to the Galaxy 3:07 17 On improbability drive 1:27 18 Many stories were told 2:35 19 Dancing robots 1:37 20 In-flight entertainment 1:59 21 The vortex is ready for you now 1:17 22 One momentary glimpse 1:32 23 An invisible dot on an invisible dot 1:55 24 The vortex derives its picture 4:20 CD２
第９話 Fit the Ninth 01 The most important being in the entire universe 3:18 02 Not a pleasant sight, even for Vogons 1:47 03 You all get it in the neck 3:09 04 A Vogon fleet on our tail 3:11 05 Share and enjoy 3:06 06 It tastes filthy 3:03 07 Life is terribly unfair 2:20 08 The living are all the same 2:50 09 The following facts 1:41 10 48 seconds 2:11 11 An unearthly voice came 2:58 第10話 Fit the Tenth 12 A remarkable effect on the universe 2:43 13 Some kind of cave 5:15 14 The problems of real life 1:16 15 This is utterly ludicrous 2:59 16 The Hitch-Hiker's Guide to the Galaxy 2:10 17 Come and meet the rest of us 1:59 18 The wise old bird 6:06 19 Distastefully explicit 3:20 20 Arthur is in the thick of it 3:37 CD３
第11話 Fit the Eleventh 01 Some form of explanation 1:50 02 All non-starters really 1:43 03 The major problem 2:22 04 The most worthwhile thing in Ford's possession 2:08 05 A sense of mystery and wonder 2:36 06 The clone rangers 1:48 07 The terrifying truth 2:36 08 The new noise 1:32 09 I could just have you revoked 4:31 10 The shoe event horizon 3:35 11 The excitement is mounting 4:59 第12話 Fit the Twelfth 12 You'd better keep your head screwed on 3:51 13 Where are we going? 1:49 14 A quiet social get together 4:16 15 Nerve rackingly enough 3:24 16 Switching tracks 2:37 17 Reality is on the blink again 2:43 18 Who you get to do it 1:02 19 Pussy want his fish? 6:00 20 What does the future hold? 2:02
＜第３シリーズ＞ The Tertiary Phase 計３時間10分
CD１
第13話 Fit the Thirteenth 01 An Updated Guide 2:24 02 The Two Earth Survivors 2:25 03 A Frustrating Encounter 1:32 04 Wowbagger 4:04 05 Reunion 3:11 06 Chasing The Sofa 2:30 07 Starships Of Legend 4:44 08 Marvin Rotating 1:33 09 The Ratchet Screwdriver Fruit 3:23 10 Goodbye Trillian 4:01 第14話 Fit the Fourteenth 11 Time Travel 3:24 12 Lords Cricket Ground 3:03 13 A Cup Of Tea And A Newspaper 3:45 14 Somebody Else's Problem 2:24 15 The Krikkit Robots Attack 3:38 16 Aftermath 3:22 17 Robot Restaurant 2:22 18 The Bistromathic Drive 1:51 19 Mattress Globbering 2:46 20 Marvin's Depressing Tale 4:26 CD２
第15話 Fit the Fifteenth 01 Lallafa And The Leaves 3:23 02 A Souvenir Offer 1:49 03 An Informational Visit 3:29 04 The Krikkit Men Awake 4:19 05 Brockian Ultra-Cricket 2:38 06 Zaphod's Sneaky Visitors 4:36 07 The Krikkit War Crimes Trial 3:25 08 Judiciary Pag Rules 3:00 09 The Campaign For Real Time 3:27 10 Arthur Diverted 5:28 第16話 Fit the Sixteenth 11 Inside The Labyrinth 4:47 12 The Cathedral Of Hate 2:53 13 Arajag 4:13 14 Flying Lessons 3:22 15 Lost Property 1:49 16 The Longest Party 2:50 17 Bring A Bottle 3:05 18 Disco Fever 2:38 19 Gatecrashers 1:34 20 Arthur Gets Tough 3:48 CD３
第17話 Fit the Seventeenth 01 Silastic Armorfiends 2:13 02 Hactar 2:53 03 Trillian's Homework 2:37 04 The Wikkit Gate 2:26 05 Philadeeleya Soundscapers 3:54 06 Zaphod Bales Out 2:33 07 Fast And Faster 3:29 08 Pan Galactic Crisis 1:22 09 The Planet Krikkit 3:19 10 Zaphod The Intrepid 5:27 第18話 Fit the Eighteenth 11 Everything To Play For 3:48 12 The Brains Of The Outfit 3:50 13 Trillian Puts A Case 3:43 14 Teamwork 2:12 15 Hactar In Particular 5:10 16 Dissolution 2:48 17 Prak 2:33 18 The Ultimate Question 2:40 19 Dr Dan's Opus 2:24 20 Return to Lords 5:26
＜第４シリーズ＞ The Quandary Phase 計２時間25分
CD1
第19話 Fit the Nineteenth 1 A Planet In The Way (Fit The 19th) 4:01 2 Now Wash Your Hands Please 3:42 3 Alien Teaser 4:17 4 The Old Pink Dog 3:59 5 The Taunton Road 2:13 6 Rain Type 232 3:42 7 Wealth Counselling 1:54 8 Another Updated Guide 2:53 9 Love At First Groan 3:07 10 Ford's New Responsibilities 2:54 第20話 Fit the Twentieth 11 Arthur's Cottage (Fit The 20th) 4:56 12 Putting The Universe To Rights 4:26 13 When Do Hedgehogs Stop Hibernating 2:35 14 Fenchurch 2:14 15 Ticket Number 37 5:05 16 A Fracture In Time 3:04 17 Still Raining, Still Dreaming 2:25 18 Xaxisian Robot Ship 4:02 19 Arthur's Good Deed 3:11 20 A Cave In Islington 2:36 CD2
第21話 Fit the Twenty-first 1 Rich Tea (Fit The 21st) 3:34 2 Fenchurch's Story 3:02 3 Arthur's Guide 3:30 4 Vogon Court Of Inquiry 2:51 5 An Inch Taller 7:32 6 Flying On The Flight Path 1:46 7 East River Nightmare 3:18 8 Murray Bost Henson 3:06 9 Another Flight 5:20 10 Wonko The Sane 6:54 第22話 Fit the Twenty-second 11 Return Of The Rain God (Fit The 22nd) 3:26 12 An American Trillian 1:47 13 Ford Prefect Unbound 3:21 14 The World At One 3:59 15 Novelties 2:36 16 Hitching A Lift On A Robot Ship 3:09 17 Multidimensional Infinity 2:15 18 Two For The Message 3:16 19 Marvin's Last Journey 8:17 20 Hyperspace Jump 3:10
＜第５シリーズ＞ The Quitessential Phase 計２時間30分
CD1
第23話 Fit the Twenty-third 1 Who Are You? 4:07 2 The Terminal 6:46 3 Tricia McMillion Billion Trillian 3:47 4 Rupert Rises 3:02 5 Astrology in Alpha 3:48 6 Zaphod Delivers a Pizza 2:38 7 Vann Harl 1:34 8 Prophets and Losses 4:01 9 The Hitchhiker's Building 3:22 10 A Happy Robot 4:11 第24話 Fit the Twenty-fourth 11 Smelly Photocopier Woman 5:53 12 Aliens on the Lawn 3:57 13 Zarniwoop 3:40 14 Spread a Little Happiness 2:39 15 The Grebulon Mission 3:25 16 Old Man up the Pole 4:02 17 InfiniDim Enterprises 3:41 18 Total Perspective Vortex 2:34 19 Hoping for a Miracle 2:19 20 Taking a Leap 3:20 CD2
第25話 Fit the Twenty-fifth 1 The Sandwichmaker 3:31 2 Old Thrashing Propitiates 2:48 3 Stuck on a Ledge 2:53 4 Trillian's Little Surprise 5:59 5 Tricia Dines on Rupert 3:19 6 Bonding 3:23 7 A Parcel Arrives 2:04 8 That Which Survives 2:01 9 Reverse Temporal Engineering 3:08 10 RW6 4:19 第26話 Fit the Twenty-sixth 11 Ford's Theory 6:56 12 In Post-Production 4:48 13 A Perfectly Normal Ride 2:36 14 Regent's Park 1:18 15 Stampede 2:01 16 In The Domain of the King 3:04 17 The Threads Draw Together 3:36 18 Number 42 3:12 19 The Probability Arc 2:40 20 Advanced Bistromathics 9:11
＜第6シリーズ＞ The Hexagonal Phase 計３時間
CD1
* Lyric: Douglas Adams / Music: Philip Pope
第27話 Fit the Twenty-seventh 1 Nice One, God, Nice One 4:12 2 The Story So Far 4:14 3 The Planet of The Dolphins 3:43 4 Fertle 2:31 5 Barzoo 3:48 6 The Shack 3:44 7 Baggy The Runch 2:56 8 A Room Made Of Sky 2:30 9 The Guide Mark ll 4:53 10 Back In the Club Beta 6:43 第28話 Fit the Twenty-eighth 11 The Heart Of Gold 2:22 12 Natural Forces 2:42 13 Left Brain 2:27 14 The Teleportation Blues * 1:39 15 Improbabilities 2:49 16 Wowbagger The Infinite Prolonged 5:30 17 Constant Mown 5:32 18 Interviewing For A God 4:28 19 Not Fenchurch 3:51 20 Zaphod's Mission 5:11
CD2
第29話 Fit the Twenty-ninth 1 Heimdall's Offer 3:42 2 Zaphod's Last Words 2:21 3 Not the Last Humans 3:48 4 A Task From Odin 2:32 5 Hel And Modgud 2:46 6 Bent Stick 4:28 7 Pormwranglers 4:47 8 A Constant Revelation 3:50 9 Tow Conficence Tricksters 3:38 10 Dine-O-Charge 4:40 第30話 Fit the Thirtieth 11 Asgard 3:23 12 The Well Of Urd 4:26 13 Ford Hits A Snag 4:42 14 The History of Nano 1:56 15 The Cong Militia 4:16 16 The Ultra-Warm Beast 1:48 17 A Visit Form Eccentrica 3:54 18 The Great Cheese 2:58 19 The Consultant 4:40 20 A Last Word On God 4:09
CD3
第31話 Fit the Thirty-first 1 The Dentrassi 2:48 2 Arrival at Nano 1:40 3 Thor's Manager 3:10 4 Those Cows 2:55 5 Zaphod & Trillian 2:44 6 Ford's Plan 2:44 7 Jeltz's Pep Talk 2:42 8 A Special Delivery 3:15 9 The Big Fight, Round One 5:01 10 The Big Fight, Round Two 8:54 第32話 Fit the Thirty-second 11 Mugging Beauty In A Dark Alley 3:57 12 The Secret At The Feast 3:01 13 A Job For Thor 3:04 14 A Holy Relic 4:25 15 By The Book 4:25 16 IZaphod's Farewell 1:54 17 A Final Call 2:55 18 Randam's Interview 1:48 19 Avenue of Pleasure 2:13 20 The Opposite End Of The Curve 7:33