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Posted: 8/29/2004 4:22 PM
Post subject: sonic cd
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aaa2
Joined: 8/16/2004
Posts: 37
just an idea if someone wants to do a run for this game it would be cool.
i hate sony like nothing else
Posted: 8/29/2004 5:25 PM
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air__devil
Joined: 8/1/2004
Posts: 162
Was this the one that is included in the Sonic Mega Collection? Or is that Sonic 3d? -Ev PS I'm awful at whichever game it is.
Love, Ev
Posted: 8/29/2004 5:46 PM
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NrgSpoon
Joined: 6/14/2004
Posts: 646
I'm sorry, but this run won't be done under any circumstance since a) cd images are much larger and therefore harder to find, and b) Gens has issues loading states if the audio track loaded differs from the one currently playing.
I like my "thank you"s in monetary form.
Posted: 8/30/2004 12:01 AM
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xou
Joined: 4/26/2004
Posts: 118
Location: france
air__devil: This game is just named "Sonic CD" and was released on MegaCD ... thats all ! It has a cool cartoon intro and the game has 3 maps for every levels : past, futur & present. You have to switch from those "times" to go throught some situations and all. And this game has a level where you gotta run versus the "meca sonic" which was kinda sweet :) One thing i can't remember is about the emeralds .
hello world !
Posted: 8/31/2004 8:42 AM
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Anon
Joined: 4/17/2004
Posts: 275
xou: That's because the game didn't have Chaos Emeralds; they had Time Stones. Get all seven and automatic good future in all levels. And the robot that you're referring to is "Metal Sonic", and the stage is "Stardust Speedway". :p </otaku> *hides in the shadows once again* >>;;
Posted: 8/31/2004 4:43 PM
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xou
Joined: 4/26/2004
Posts: 118
Location: france
I haven't played that game for yeaaaaaaaaaaars ! A speedrun could be nice ...
hello world !
Posted: 10/6/2004 7:05 AM
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Mr._Pwnage
Joined: 6/6/2004
Posts: 223
http://www.soniccenter.org/?/videos/sonic_cd SprintGod, the same maker of the S3&K run, has each level completed there. Overall level completion time is 13:10 (for the record, it only needs to be under 25 minutes to unlock all the secrets).
Posted: 11/13/2004 1:09 AM
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Unknown_User
Joined: 1/1/2022
Posts: 1716
Gens has issues loading states if the audio track loaded differs from the one currently playing.
maybe but if you just delete the containing mp3 files there will be no background music but the sound is ok. on this way it would be possible to rerecord a run.
Posted: 11/13/2004 8:21 AM
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AdmiralJonB
Joined: 6/20/2004
Posts: 292
Location: United Kingdom
what about all those games which have music inbuilt? they don't seem to work. I don't understand why it is so hard to make a save state for a sega cd. Can't you just store every single piece of ram and place in music into a file? how hard could it be? I'd do it but I haen't had experience programming an emulator.
Posted: 10/5/2006 12:11 AM
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Shadow_Byrn
Joined: 3/16/2006
Posts: 289
*digs up old topic from bowels of TASvideos* Hey, look what I found! Just played this the other day and was wondering if anyone is up for a TAS of this?
I am just a silhouette, a silhouette of a memory of a solitary night .. nothing more.
Posted: 10/5/2006 12:59 AM
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nitsuja
Emulator Coder, Skilled player (1310)
Joined: 12/21/2004
Posts: 2687
Computer TASer of 2011 TAS of 2011 First edition TAS of 2011 Computer TAS of 2011 Sega TAS of 2010 Sega TAS of 2008 Sega TAS of 2007 Glitchy TAS of 2007
It should probably wait until Gens is better at SegaCD savestates/recording. It is better than it was before, so it probably is already possible to TAS it, but anyone who tries it now will have to deal with lots of desync and freezing problems.
Posted: 10/5/2006 2:50 AM
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Kitsune
Joined: 4/29/2005
Posts: 1212
I would much rather see a Speed Run for Sonic 3D. Would be more fun.
Posted: 10/5/2006 4:27 AM
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N._Harmonik
She/Her
Joined: 8/27/2006
Posts: 502
Location: Canada
Isn't there another SEGA CD emulator that can fulfill a TASer's needs? ...By the way, how about getting the Good Ending by acquiring all seven Time Stones if doing this game is possible.
Why, oh, why do I even <i>try</i> to understand my own species?
Posted: 10/5/2006 4:49 AM
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upthorn
He/Him
Emulator Coder, Active player (391)
Joined: 3/24/2006
Posts: 1802
Sega TAS of 2011 Sega TAS of 2010 Sega TAS of 2008 Sega TASer of 2007
nitsuja wrote:
It should probably wait until Gens is better at SegaCD savestates/recording. It is better than it was before, so it probably is already possible to TAS it, but anyone who tries it now will have to deal with lots of desync and freezing problems.
Unless you've been fixing up the non-savestate related SegaCD functions, there's still a chance for random desync on playback whenever the game waits for data to be loaded from the disc. This is because unlike cartridge games, which were solid state, SegaCD games were programmed to take variable read-times into account. And so SegaCD emulation continues to generate frames while loading data.
How fleeting are all human passions compared with the massive continuity of ducks.
Posted: 10/5/2006 9:10 AM
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nitsuja
Emulator Coder, Skilled player (1310)
Joined: 12/21/2004
Posts: 2687
Computer TASer of 2011 TAS of 2011 First edition TAS of 2011 Computer TAS of 2011 Sega TAS of 2010 Sega TAS of 2008 Sega TAS of 2007 Glitchy TAS of 2007
I think we've been over this before. Gens doesn't randomize load times, so it doesn't matter what SegaCD games were programmed to take into account. Gens may, however, fail to initialize some variables. That could easily have gone unnoticed because its emulation variables are scattered all over and often hidden in assembly files. If some of the uninitialized variables happen to be related to disc loading, that would cause the effect you describe, but there's nothing inherently nondeterministic about CD-based games when the CD is virtual.
Posted: 10/5/2006 9:22 AM
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upthorn
He/Him
Emulator Coder, Active player (391)
Joined: 3/24/2006
Posts: 1802
Sega TAS of 2011 Sega TAS of 2010 Sega TAS of 2008 Sega TASer of 2007
Hey, I never said that Gens did the randomizing. Just that there is, for some reason, a randomly occuring variance of +/-1 frame on each end of any "CD Read" operations in Gens' SegaCD emulation. My initial theory was that it had to do with hard-drive seek-times. But experiments with loading the ISO from a 200MB RAM drive seem to have disproven that.
How fleeting are all human passions compared with the massive continuity of ducks.
Posted: 10/5/2006 9:43 AM
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nitsuja
Emulator Coder, Skilled player (1310)
Joined: 12/21/2004
Posts: 2687
Computer TASer of 2011 TAS of 2011 First edition TAS of 2011 Computer TAS of 2011 Sega TAS of 2010 Sega TAS of 2008 Sega TAS of 2007 Glitchy TAS of 2007
I wasn't aware you had evidence for that +/- 1 frame variation on each CD read. I haven't personally noticed any unreliable playback of SegaCD movies, only reliable desync on playback, which could have been caused entirely by something that went wrong while recording. (How often does Sonic CD access the disc during a level, anyway?)
Posted: 10/5/2006 10:12 AM
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bkDJ
Joined: 7/26/2006
Posts: 1215
nitsuja wrote:
How often does Sonic CD access the disc during a level, anyway?
Not at all except for music. it only loads actual data at the start of the level, when reentering the level after a bonus, when loading a different time of the level, when loading a bonus
Posted: 10/5/2006 4:09 PM
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Shadow_Byrn
Joined: 3/16/2006
Posts: 289
Ummm...wasn't Knuckles Chaotix a 32X game? And wasn't that on a CD to begin with? So, why'd that one work?
I am just a silhouette, a silhouette of a memory of a solitary night .. nothing more.
Posted: 10/5/2006 4:47 PM
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billybobfred
Other
Joined: 12/2/2005
Posts: 76
Shadow Byrn wrote:
Ummm...wasn't Knuckles Chaotix a 32X game? And wasn't that on a CD to begin with? So, why'd that one work?
It worked because 32X is not CD-based, it's cartridge-based. So, no, it wasn't.
I'm just a spectator. There was a time when I tried to participate, but I'm really lazy, so. she/her/hers
Posted: 10/5/2006 8:23 PM
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Shadow_Byrn
Joined: 3/16/2006
Posts: 289
32Xes are carts? Wow, so why did I think that they were CDs? Reguardless, has anyone actaully attempted a test run or something?
I am just a silhouette, a silhouette of a memory of a solitary night .. nothing more.
Posted: 10/6/2006 12:28 AM
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Bladegash
Former player
Joined: 3/9/2004
Posts: 484
Location: ­­
There were a couple 32x CD games.
Posted: 10/6/2006 12:08 PM
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Anon
Joined: 4/17/2004
Posts: 275
Really? Which ones?
Posted: 10/6/2006 9:11 PM
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upthorn
He/Him
Emulator Coder, Active player (391)
Joined: 3/24/2006
Posts: 1802
Sega TAS of 2011 Sega TAS of 2010 Sega TAS of 2008 Sega TASer of 2007
http://en.wikipedia.org/wiki/List_of_Sega_32X_games wrote:
  • Corpse Killer (used in conjunction with Sega CD)
  • Fahrenheit (used in conjunction with Sega CD)
  • Night Trap (used in conjunction with Sega CD)
  • Slam City (used in conjunction with Sega CD)
  • Supreme Warrior (used in conjunction with Sega CD)
  • Surgical Strike (used in conjunction with Sega CD)
Note that there is currently no emulator capable of playing 32X-CD games properly.
How fleeting are all human passions compared with the massive continuity of ducks.
Posted: 10/6/2006 10:13 PM
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Shadow_Byrn
Joined: 3/16/2006
Posts: 289
Wow. I just realized that the Genesis+CD+32X= one big system. So I'm getting a no about this getting TASed?
I am just a silhouette, a silhouette of a memory of a solitary night .. nothing more.
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