Getting the same two hash values for carved files I found I am doing an independent study class for computer forensics, I have to carve the images I've been given. After using scalpel I get a .wav file and .asf file both files play the same songs, and they generate the same md5 hash values. Is this because they are the same file just with .wav and .asf at the end or I am possibly doing something wrong?
It is quite practical to deliberately generate two different files with the same MD5 hash; if you were handed these files by someone else, it is possible that they did this.

However, MD5 will collide only if someone deliberately crafts the files to do so; if you modified the files somehow, then this is unlikely to happen.  Instead, it would be a strong indication that the two files are bitwise identical.