1. GalatasarayEken

    OP GalatasarayEken Advanced Member
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    Okay so I downloaded a 3DS rom and in some places it says how a roms image size is


    1024
    2048
    4096
    8192
    16384

    I downloaded Pokemon Mystery Dungeon - Gates to Infinity and was wondering why the file was only 1gb 48mb and 576kb

    are roms supposed to be small?
     
  2. calmwaters

    calmwaters Cat's best friend
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    It depends on the rom: someone said on here that standard sizes range from maybe 64 to 256MB. Of course there are some games that go from 512 to a GB... not that I know what they are.
     
  3. Chaldron

    Chaldron GBATemp's Official Attorney
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    1 GB 48 mb is quite big compared to the old DS roms that went max to like 150 mb
     
  4. Snailface

    Snailface My frothing demand for 3ds homebrew is increasing
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    First, files on your computer are measured in bytes and ROM sizes are measured in bits. So divide the numbers you see on that scene site by 8 to get the megabytes. The files are also compressed when you download them so that further decreases their size.

    To make sure you got the right ROM and it is uncorrupted, unzip it and drop it on the little app attached to this post and compare the 8 digit number shown on the command prompt to the ROMs 'imgcrc' on http://3ds.essh.co/. Everything's good if the numbers match.
     

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    IronClouds likes this.
  5. GalatasarayEken

    OP GalatasarayEken Advanced Member
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    I downloaded the crc.32.zip thing and I dragged the 3DS file to the .exe but nothing happens :/
     
  6. Snailface

    Snailface My frothing demand for 3ds homebrew is increasing
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    Works for me. For large ROMS it may take a while.

    This one is faster, try it:
    http://www34.brinkster.com/dizzyk/crc32.asp
     
  7. Vengenceonu

    Vengenceonu Revenge is beneath me but accidents do happen.
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    For people who have Gateway, how long does the Windisk32Imager take to write to your micro sd cards? (state the Rom size, card class, capacity and brand also if you can).
     
  8. Armadillo

    Armadillo GBAtemp Psycho!
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    4GB rom to a class 10 card took around 10min for me. Card reader is not that great and gets around 5MB/s, my new reader is should be here tomorrow or Tuesday. I'll do some proper speed tests when it comes, if you want (rom size, card, write speed, accurate time etc).
     
  9. Vengenceonu

    Vengenceonu Revenge is beneath me but accidents do happen.
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    Hey, i used the tool on my roms and some dont work. Every one that loaded up gave me the correct imgcrc's but the rest all said Error - I/O error 998 (Donkey kong just said error) when i select them. Are they corrupted?




    ok thanks.
     
  10. Snailface

    Snailface My frothing demand for 3ds homebrew is increasing
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    Are all the files that are corrupt 4GBs? Could be that it won't read a file that large (its an old program - likely won't read past 2GB)
    http://www.exactfile.com/downloads/

    Try that (uncheck everything except crc32). If it doesn't work, the file is certainly corrupt.
     
  11. Vengenceonu

    Vengenceonu Revenge is beneath me but accidents do happen.
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    These are the roms that wont read in the second program you posted and their error codes:

    street fighter - I/O error 998
    kid icarus - I/O error 998
    Donkey kong - error
    Fire Emblem - I/O error 998
    Kingdom hearts - I/O error 998
    Monster Hunter 3 Ultimate - I/O error 998
    Shin Megami Tensei - I/O error 998
    Monster hunter 4 - I/O error 998

    Ill try your new program now...
     
  12. Vengenceonu

    Vengenceonu Revenge is beneath me but accidents do happen.
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    Update: I just tried SMTIV USA and MH4 JAP and it returned to me the correct imgcrc's thanks.
     
  13. GalatasarayEken

    OP GalatasarayEken Advanced Member
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    do I have to input the .3ds file help me please I don't know how to use the program
     
  14. Vengenceonu

    Vengenceonu Revenge is beneath me but accidents do happen.
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    Download the setup.exe version. After it installs, click Single file checksums. Then uncheck all the boxes except crc32. then locate the 3ds file and click "go".
     
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  15. GalatasarayEken

    OP GalatasarayEken Advanced Member
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    Fire Emblem Awakening for example, do you think its corrupt rom? look at the rom size after I extracted.
     

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  16. GalatasarayEken

    OP GalatasarayEken Advanced Member
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    k I know how to use it now but what does this mean?
     

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  17. Vengenceonu

    Vengenceonu Revenge is beneath me but accidents do happen.
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    It means your good. That imgcrc matches up with whats on http://3ds.essh.co/. Your fire emblem is right.
     
  18. GalatasarayEken

    OP GalatasarayEken Advanced Member
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    Thank You so much!! <3 you've been really helpful, same with others :) Your a great person, btw i'm following you :)
     
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