The reason they have poor archives is that the original Cinemaware went bust many years ago, a few years ago some of the original people from Cinemaware revived the company and they have started from scratch regarding archives.
Sadly you do not need to go bankrupt to have non-existant archives. Most game companies forget do not save a copy of their finished games or the source files required to build them. If you do not believe me take a look at all the re-releases of old dos games; they will not re-release games that were heavily copy-protected or that required specific 3d hardware and not one of them has been recompiled to work in modern operative systems.