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Orecron May 30, 2006 02:12 PM

Odd file type.
im really unsure about this file backup for a dreamcast game...
the file names are as follows


all the way up to


it came with an SFV file and some other. i dont have the program to open it. ran an SFV check, all is good. wont open with winrar, zip and so on.

any clues?

carl1961 May 31, 2006 02:53 PM

Use winrar to extract file Sonic.Adventure.2.SelfBoot.7z.001
it will combine all the others to one file. you can doubleclick the file and it should run winrar if not right click file and clickon OPEN WITH and point to

\Program Files\WinRAR\WinRAR.exe

shade0723 Jun 28, 2006 08:12 AM

what you have there is chain arhive which you can only open with a program called 7-zip and it's freeware.just install that program and click extract.inside that arhive you should find somthing like sonic.adventure.2.selfboot.cdi and it's the cd image from the game.(hope you haven't deleted it yet :)) i almost did )

bluestreak711 Nov 02, 2007 12:22 PM

please help i am in the same situation and when i extract the files and get the disc image it tells me that the disc structure is invalid

bluestreak711 Nov 06, 2007 09:56 PM

Orecron i havent found an answer yet i am looking for myself and since this thread is dying i didnt get any responses so i posted it on my other forum and just keep in check here


and if you solve the problem you were having before i do please share
but i am gathering good information in my other thread

everybody on this forum can just reply here and let me know what you think

cobblers Nov 07, 2007 02:15 AM

bluestreak711, i assume from your other thread that you're using nero7 to burn with?...well i think you'll need to use an older version- nero5.5 to burn dc images, or try using alcohol to burn the image maybe?

personally, back in the good old days of dreamcast, i used to use cdrecord to burn dc games but it is a very involved process and the old memory isn't what it used to be...:D i used to post to this forum with the username of arthur_p_huxake, search for posts from that username and you should find some relevant info...goodluck fella, keep us posted and let us know how you get on.


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