How to extract ECW Anarchy Rulz DREAMCAST textures?

[Impaler]

Hi, recently it came to my attention that ECW Anarchy Rulz Dreamcast version has better textures than its PS1 version. I'd like you to share how can I rip these textures off of that games' CD?

 

I know that an archive can be found on the internet which already contains textures from that game and many others. But the thing is that in that archive there are no CAW textures, only real wrestlers' parts are included.

 

I already have the game, but where do I start to extract those textures?

 

Thanks.

[Impaler]

Thing is that I have a game image but I do not know how to dump data as normal files which are contained within that bin/gdi file. Whenever I try to mount it or open it in such tools as isobuster it just says that image file is invalid and not a single file can be retrieved.

I believe I need to extract PVR files from that main image. After that its easy I suppose...

[The CAW Archive]

I've wanted this for ages myself nobody who rips from these games ever put the CUST.BIN files in.