The Commodore booklets are GREAT. . . a fascinating interview with Gabler in these (which it turns out is also reprinted in a book entitled "The Jazz Reader" that came out some years ago.)
I managed to buy each booklet from Mosaic for ten dollars each, and also the separate complete discography (which you really don't need as it mainly lists the myriad ways in which all these sessions were issued and reissued and re-reissued over the years--the booklets to the set will give you all the track and personnel details you'll need).
Commodore has some fantastic music in its grooves. The best of the material really has come out on cd over the years. . .but there is much that is fascinating that hasn't. It's not hardbop or even bebop. . . . I know that there are some who are not into the earlier styles that wouldn't want to pay the big dollars for this. But if you can enjoy Morton, Holiday, Teagarden, Page, Powell, Russell, Peck Kelly and so many others, this was a topnotch label!