I am not sure what to make of this thread. From the very beginning. Was the "Off the Wall" thing just a joke? Did you mean simply "The Wall"? I am going to simply assume you are Pink Floyd newbie. The Dark Side of the Moon has been well regarded over the years as both a masteful recording for sound quality and for musical excellence.
The wikipedia article is quite interesting:
http://en.wikipedia.org/wiki/The_Dark_Side_of_the_MoonA couple of snippets from this article:
"To this day, audiophiles use The Dark Side of the Moon as a reference standard to test the fidelity of audio equipment, despite the fact that it was originally mixed from third-generation tape with Dolby noise reduction.[1]"
"The Dark Side of the Moon is one of the best-selling albums of all time worldwide, and the 20th-best-selling album in the United States. It peaked at #1 on The Billboard 200. Though it held the #1 spot for only one week, it spent a record total of 741 consecutive weeks (over 14 years) on that list."
The album was recorded in 1973. I don't have a good enough audio system to claim that you should use this as an audiophile reference test disk. There are bound to be better disks produced in the last 33 years. However, if you like "The Wall", then I am sure you will be happy with "The Dark Side of the Moon".
I guess perhaps there is also confusion over whether it is "The Dark Side of the Moon.", the normal album or as nathanm pointed out, "Dark Side of the Moon", a bootleg.