This live recording has cropped up in so many different and varied releases on CD that it is almost impossible to keep track on. Every time it gets re-issued it also gets a new title. It is therefore quite confusing to try to put together a complete discography of all the different Blitzkrieg releases. Another problem is that the catalogue number or the label is sometimes the same on various releases, or at least they are very similar. And sometimes the catalogue number on the CD is another one than the number you find on the back cover, or the spine. Especially all different German releases with catalogue number 156520, or similar, and labels like Mastertone, String, Trend or Merlin. This means that often when you find a new version of BOB in a discography section or on a sales list, you discover after a while that you actually already knew about it, but you used to refer to that particular release with another catalogue number, or label.

Another thing that might create a bit of confusion is the mix up with similar releases such as Lock Up Your Daughters (LUYD) or What´s Words Worth (WWW). The track lists on the different recordings are quite similar. Releases of those two are not as common on CD as BOB though, probably because LUYD is an inferior live recording while the rights to WWW is owned by Ted Carroll and Ace Records and is therefore probably more expensive to license.

Except for the releases that have "Birmingham" in the title it is never mentined on the CD´s that they contain the 1977 Birmingham gig. I don´t know why they don´t bother to print this information on the releases but I find it very annoying. Maybe they just want us to hope that this might be a never before released concert?