First you will need the following tools:
http://www.teamspooky.com/Random/MBAC%20Music%20tools.zip

This has the tools Extractor and Audacity. Extractor's ini file is set with the settings you will need already.


After Downloading and extracting these files,
MAKE A BACKUP COPY OF THE FILE 10.p in the Melty Blood directory.

This is very important in case you make a mistake, and also because these steps are still in beta form. I don't take responsibility if you break your computer, need to redownload the MB ISO, or whatever.

Alright, after backing up your 10.p,


Load up Extractor and choose the topmost 'Select' Icon'



Browse to the 10.p file.

Select 'Start'




To replace a song, select it in the list and hit Functions -> Import file






Choose the song you wish to import, and hit YES to both Prompts.
Here are the songs in the 10.p file and what they correspond to: (some of these still need to be worked out)

10 00001 Opening Movie
10 00002 Sion Stage
10 00003 Akiha Stage
10 00004 V.Akiha Stage
10 00005 V.Akiha Stage alternate version ?
10 00006 Front of Tohno Mansion (Maids Stage)
10 00007 V.Sion Stage
10 00008 Warakia Stage
10 00009 Chaos Stage
10 00010 Kohaku Stage
10 00011 Arc Stage
10 00012 Warc Stage
10 00013 Ren Stage
10 00014 Nanaya Stage
10 00015 Aoko Stage
10 00016 White Len Stage
10 00017 Shiki Stage
10 00018 Ciel Stage
10 00019 Mech Hisui Stage
10 00020 Neko Arc Stage
10 00021 Miyako Stage
10 00022 Hisui Stage
10 00023 Kouma Stage
10 00024 Satsuki Stage
10 00025 New Stage 1 (Neon Street)
10 00026 New Stage 2 (Alternate version of Arc/Chaos Stage)
10 00027 New Stage 3 (alternate version of Kouma Stage aka GUOOOOOOAAAAAAAAA 2.0)
10 00028 Neco Chaos Stage
10 00029 Damien Army Stage
10 00030 Neco666
10 00031 Story mode conversation
10 00032 Story mode final conversation (Evil character Version)
10 00033 Story mode White Len conversation
10 00034 Story mode final conversation (good character version)
10 00035 Options Screen
10 00036 Here comes a new challenger!
10 00037 Continue?!? (Story Mode)
10 00038 Game Over
10 00039 Ending (Good characters)
10 00040 Ending (Evil Characters)
10 00041 Next Stage
10 00042 Fight Intro
10 00043 Fight End
10 00044 Character Select

Now you may notice a problem -- all these Files are in OGG format!

To convert your mp3s to ogg format (as well as shrink them down somewhat to make them more manageable) we will use Audacity.

In Audacity all you have to do is load your mp3, Select File -> Export as OGG,



Now you have an OGG music file. You can also cut some space on your files (necessary to make the songs fit better into the 10.p file) by lowering the bitrate (bottom left, setting a lower number will create a smaller file) or cutting parts of the song using Audacity's editing tool. for example if your song loops itself, cut the loop out, since the game will loop your song anyway. (this will easily cut your file size in half)




Good Luck.

The Melty Blood soundtrack kicks ass. Why would anyone in their right mind want to replace it with something else?

Ah, it must be because of the thrill of modding or something like that.