double dragon sega everdrive MD

Discussion in 'Mega Everdrive / Everdrive MD' started by goemon74, Oct 20, 2011.

  1. goemon74

    goemon74 Newly Registered

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    He guys,

    Was just playing on my megadrive (pal) and wanted to play double dragon. But it just won't boot up. I tried several roms. Has anyone else have this problem? I hope someone can help me!

    kind regards goemon74
     
  2. bertobp

    bertobp Rising Member

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    I check Double Dragon (U) in my Megadrive PAL (no mods) and work fine, without problem. I use an No-Intro rom:nod:
     
  3. goemon74

    goemon74 Newly Registered

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    Still no luck!! Can someone please let me know which settings your everdrive is on to play this game?? I have OS23 and are on firmware 4. I have everything switched on in the options menu except genny 3 mode
     
  4. Nipedley

    Nipedley Member

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    Hi Goemon, works fine here too on OS v29 and FW v13. Perhaps you can upgrade your OS and see if that helps? I checked my options menu and it is indentical to your settings.
     
  5. bertobp

    bertobp Rising Member

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    I have OS v23 too and works perfect but... your FW v4 it´s very obsolete.. I have the FW v12:rolleyes:
     
  6. adithompson

    adithompson Member

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    i had the same issue with double dragon
    i found that with the same rom and same everdrive it worked on one console and not the other (worked fine on md1 but would not boot on my multi mega
    so might be worth getting a second console chap
     
  7. KRIKzz

    KRIKzz Well Known Member

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    looks like i know why some games may not work. cd unit is a problem. some sms and md game wont work if cd unit attached to the system
    here is video: http://youtu.be/hXEiAnzJP6w
    so, unfortunatelly, any addons makes compatibility worse. by this reason i prefer to use stand alone deck without 32x and cd
     
  8. jacksprat1990

    jacksprat1990 Member

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    What was that menu? Is that a work in progress for the regular EverDrive or is that for the Super Ultra Mega EverDrive?
     
  9. KRIKzz

    KRIKzz Well Known Member

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    it was mega everdrive
     
  10. Eke

    Eke Spirited Member

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    For some unknown reason (copy protection ?), this game attempts to clear the cartridge ROM area, more precisely the ROM header (starting at $000008, then $000010, $000018... up to $000280), which is normally non-writeable on a normal cartridge.

    Maybe when CD unit is connected, those writes affect something on the system (not sure how possible this is) or Everdrive is doing something when it detects those write ? Strange how the game seems to be halted then unhalt as soon as you unconnect the CD unit :confused:
     
  11. KRIKzz

    KRIKzz Well Known Member

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    i burn dd rom instead of edmd bios, and make super lite firmware which make the cart almost absolutelly identical to regular cart, but still hang, so i pretty sure that regular cart will show same results. i gues that problem somewhere in Z80 section, may be some unknown bug in genesis hardware. DD is not the only game which don't work with mega cd, i saw some other games, but can't remember name, jut remember that those game also have ballistic logo on the start. some sms games also does not work if cd unit is attached, addams family, for example
     
  12. Whitesnake

    Whitesnake Newly Registered

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    It is probably worth noting that Accolade made their own cartridges
    and they don't work through the Sega 32X.

    I own an actual copy of Double Dragon and remember it not working,
    I'm pretty sure Combat Cars didn't work either.

    Probably fixable.
     
    Last edited: Nov 19, 2011
  13. Azathoth

    Azathoth Spirited Member

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    Using OS 23, FW 8 on a model 1 NTSC Genesis Double Dragon works fine, this is with a model 2 Sega CD attached to it.

    My Double Dragon cartridge works fine on this setup also. Maybe it just affects PAL machines?
     
  14. goldenband

    goldenband Spirited Member

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    I had no problems with:

    - original cart on Model 2 NTSC Genesis + Model 2 Sega CD
    - GoodGen ROM on same setup via EverDrive with OS 14 (!), firmware 9

    Both setups seemed to work perfectly.
     
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