MD: I regret the fact that my thread appeared so off the mark. That was not my intent. Perhaps that is a defect of having a music collection that has reached the point where I do not always recall exactly what I own or when that was last played. Couple that with daily life stuff; for me, I needed more than just recall to manage my collection. Now that I use a mgt. system that can collate , isolate/merge , etc. I have printed and computer information ,as well as, the ability to draw from industry databases that provides me with abundent options to assist with making decisions on weither to keep,discard or sell certian LPs/Cds. Since my musical tastes/tectnologies range from Edison cylinders thru to DVDs from rare 1884-09 red/blk. cylinders of irish folk songs to rare 78s of forty's swing,jazz and early rock to thousands of Lps and Cds I feel very confortable making my decisions as if it were asset management. And if you know anything about value ($$$$) you should recognize that early,mint, edision cylinders with playback machines are the "holy grail" of collecting. Music collecting and playback equipment are a foundation of my lifestyle.Cheers- Charlie