There are a variety of CDs of music available. These are ones that I have and have listened to already.
Loving Heart (SM 036)
This is a really good CD. I've listened to it many times and never grow tired of hearing it.
Singing Heart (SM 037)
This is another CD that I listen to over and over. Some of the songs are the same as on the other CD, but some aren't.
ShinKor Original Soundtrack (GA 099)
This is a fairly decent soundtrack, a little jazzy in places, and quite a bit different from the other two soundtracks above. This is one of those kinds of CDs that you don't care a whole lot for at first, but like more as you listen to it.
Image Album (GA 088)
I really, really do not care for this CD. I disliked it the first time I listened to it, and no amount of willpower on my part has enabled me to listen to the entire thing a second time; I get partway through and then turn it off. This is one CD you can forget unless you are a completist.
Madoka's Piano Files (GGG 013)
This is a relatively short but quite listenable collection of piano music. The songs are "Performed by Madoka Ayukawa" according to the cover.
This is SM-280 and consists of regular vocals from the series along with background music, often of a slightly jazzy feel. This is another good CD. Many of these CDs, though, do tend to be somewhat repetitive as is this one.
SM-281. The booklet features a particular good picture of Madoka and the back of the CD has a rather sexy pic of Hikaru. This CD consists of three types of things; music alone, singing alone, and singing which is then drowned out by talking. This makes this CD different from most of the others. If the talking bothers you then you should skip this CD but if you want to hear the voices of the characters again then this is one you should add to your collection.
This one features a rather sexy and different drawing of Madoka on the cover. Otherwise it's pretty similar to many of the other CDs listed above.
Another CD with background music and some vocal material. A couple cuts on this CD are quite annoying and jarring musically and this is not a CD I would suggest anyone but completists purchase. The booklet, though, does have a nice picture of Madoka and also the three main characters in super-deformed style, a rather unusual form of artwork for Orange Road.
Another fairly standard Orange Road CD. There are 17 tracks, many of them repeats from various other CDs. Nothing really makes it stand out from the other CDs. Nice to listen to, though.
This is not one of the best Orange Road albums. There is lots of jazz music on the CD but not very much of it is really recognizable to me as being from Orange Road. This is one CD that you can pass on.