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Why is it necessary to use SwapMagic and slide card?

Discussion in 'PS2' started by IkaMega, Dec 7, 2004.

  1. IkaMega

    IkaMega Member

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    Can anyone explain why it is not possible to do an exact backup of a game onto a DVD so that it will play in PS2 just as the original does?

    Why is it that we must use either a chip mod or Swap Magic and slide card?

    Tahnks.
     
  2. devilhunt

    devilhunt Active member

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    put simply today's writers are not capable of writing the boot code needed to create a self booting backup
     
    Last edited: Dec 7, 2004
  3. IkaMega

    IkaMega Member

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    Can you elaborate on this, in what way are they unable.

    Considering the technology is changing all the time may it not be possible with some of the latest writers and /or software?

    Thanks for any help.
     
  4. andyfrank

    andyfrank Regular member

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    there is a huge difference between a factory PRESSED game and a backup BURNED game. A pressed game is literally pressed...the data layer (shiny part) is made or printed and pressed into the disc. This contain places on the disc known as "bad secotors"...these can only created by pressing the disc...any burner is only capable of burning the "good sectors" becuz it is what disc burning is intended for. The dvd-rom drive in the ps2 is not your normal drive...it is capable of reading these bad secotors where the ps2 code is that lets the ps2 know if it is a real game created by $ony or a backup...the modchip/swap magic tricks the ps2 into thinking it is playing a real game by loading that special code either by the chip or loading it off the swap magic disks (which are pressed in china or sumuwere) and then it instructs you to swap the swap magic witht he backup tricking it into thinking tht it is playing the real game but its really playing the code from swap magic and then the backup. i hope this helps

    -andrew-
     
  5. IkaMega

    IkaMega Member

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    Thank you andyfrank.

    Yes that helps me understand just exactly what is going on.

    Incidentally, it also explains why you cannot copy and write a SwapMagic disc, as presumably these have to be 'pressed' as well.

    To dream on a little further on possibilities - supposing a firmware update of ones DVD reading writing hardware was able to emulate and read the 'bad sectors' on the original PS2 DVD might it not then be possible to write the code to the backup disc so that it would be read on the PS2 as the code within a so called 'bad sector'

    I apologise if this question begins to enter the realms of fantasy!
     
  6. andyfrank

    andyfrank Regular member

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    yes BUT.....the actuall process of BURNING and PRESSING is different...when you burn it you are physically changing the property of the media and its impossible to burn something incorrectly on purpose...lol its difficult to explain...the reading thing is a little more in this ballpark of "dreaming"
     

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