Around 26 thousand, Richo... 37 TerraBytes of storage..
Not sure how many I have, Kev...although most of mine are quite high quality so I know there will be nowhere near as many as in your collection.
I do have a fairly good range of 3D movies as well.
As far as hard drives go, there's 40 odd Terabytes holding them all....
I also collect blu-rays as well with my collection numbering somewhere close to a thousand...then there's all the dvd's stashed in boxes...
I think I need to get out on the ST more!