MediEvil

• Create a ISO image using MakeCD.
• Apply the appropriate country Patch:
  • PSXHacker r medievil_uk.pat CDI1:01_Mode2_49_57_33
  • PSXHacker r medievil_de.pat CDI1:01_Mode2_49_57_33
• Burn the ISO image back to a CD-R.

• Make an image file from your CD and call it 'medievil.nrg'
• Place medievil.com in the same directory and run it.

It's not perfect because there are 10 locations (7 for the French) to patch and for each one, the whole image is searched from the start.

I hope to brush up on my assembly language to improve this but for now it's better than editing the image manually.

This patch uses a "Search and Replace" method to patch the necessary bytes rather than the normal offset method and so should work on ANY image file no matter what software produced it.

The filename does need to be medievil.nrg though so if you are using CDRWin, rename the .bin file, patch it then rename it back before burning.

When hacking a binary CD image, you are upsetting the checksums that are built into the image to ensure data integrity.  A CD Recorder will handle this in one of two ways:

• It will recalculate the checksum based on the data in the sector.  This is what happened for the people who were successful with my original patch.
• It will recalculate the data based on the checksum.  This is what happened to the people who were unsuccessful.  The patch was overwritten by the CD Recorder.

The following screen grabs show a bad non working copy of Medievil on the left and a Good patched version on the right.  The differences are highlighted.

What you need to do is use your Hex Editor to SEARCH for a sequence of bytes that appear in the pictures.  When you are happy that the bytes you are looking at are the actual bytes shown on the left of my screen grabs then you can proceed to edit them to the values on the right.

I did warn you that it was a lot of editing.

The image file used was made with Nero Burning Rom and the Hex editor used was HEdit.  If you use the same (although it is not compulsory) it is highly likely that the locations of the bytes to change will also be the same.

Please do not mail me telling me that you cannot find the bytes listed.  This patch should work with the English version and the Australian version.  It may work with others but I'm not sure.

If you are successful using this patch then by all means send me a mail telling me so.   If you get another coaster then send flame mail to postmaster@localhost.

Here we go:-

Double-click the picture to see all six pictures!

Done editing?

Then save the edited image file and burn it to a new CD.

• Location 1:  18833854 hex
• Location 2:  187ACFFC hex
• Location 3:  187AD164 hex

These values are the hexadecimal addresses "highlighted/selected locations" in the DAZ fix!

Tnx to Cameron Stepens for sending this fix by e-mail!

• Make an Image-Copy using CDRWIN (using the RAW-Option).
• Use TRSIMEDI.EXE from the archive to patch the imagefile.
• Burn the image onto a CD-R.

Tnx to Joost & Mario for both supplying the fix!

When copied to a recordable CD this game will not allow you to play level 4 (The Hilltop Mausoleum). To fix this limitation, do the following:

To apply the patch you will need:

Software to produce a binary CD image (CDRWin recommended)

• A Hex editor (like HEdit)
• A CD Recorder
• A blank CD

 The patch:

• Extract the CD image from the CD (original or unworking copy)
• Load the CD image into your Hex Editor
• The exact positions within the file may change depending on what software you use to record the image file. The following pictures are included so you can see the byte sequence around the necessary locations and were taken from an image using CDRWin.

There are 3 locations which require changes.

Location 1:

Change the highlighted locations to 'AA 87' . Yes I know the picture above shows them already changed but I had already done that before I grabbed the screen. Just search for the bytes before and after.

Location 2:

Change the selected locations to '00 00 00 00'

Location 3:

Change the selected locations to '00 00 00 00'

If you now SAVE the amended CD image and burn this image to a CD you should have a fully functional 'back-up' copy of Medievil.

Credit also goes to MrSporty who provided the Action Replay codes for the game which my patch is based on.
If anybody would like to produce an easier way to make an executable patch from my method then please let me know first and credit me when you do it. That's all I ask.

Disclaimer:

The method described above worked for me and should work for anybody who has the UK PAL version of Medievil that stopped at level 4. If it doesn't work for you then I'm really sorry but I can't help you any further.

• Make an Image-Copy using CDRWIN onto you harddisk, image filename: MEDIEVIL.BIN
• Use the PATCH.EXE from the archive to patch the MEDIEVIL.BIN imagefile.
• Burn the image onto a CD-R.

• Make an Image-Copy using CDRWIN onto you harddisk, image filename: MEDIEVIL.BIN
• Use the MEDIEVIL.EXE from the archive to patch the MEDIEVIL.BIN imagefile.
• Burn the image onto a CD-R.

After this has been entered ... the game will pass the protection check no
worries...

So , by now you all should be playing level 5 and onwards .. but it don't end
there , what we need from all of you is to play test the game and report
any more checks that we may have missed ,also we need the byte offsets
checked on NTSC games/machines .. and finally could somebody who can use
this info , produce a hard byte patch to kill this protection routine once
and for all...