The subject is the question. Does anyone know?

All of them. Both in the us and japan

Thanks for the reply. I am considering collecting all the episodes and would like to know how many LD's that would be. I have seen episodes 105 and 106 ( I think) which mean there are 53 LD's at least. (I currently have episodes 1, 2, 3, 4, 5, 6, 7, 8, 41 and 42.)

-89 discs for 178 aired episodes.
-last episode "all good things" was released twice. same content, same cover art, same quality.
-there are 3 collector's set that has 4 TNG episodes.
-Q: continuum
-Worf: return to grace collection
-Borg collective
-there is also "Captain's collection" set which has 1 TNG episode in it.
total of 93 titles if you are completest.

In japan TNG was released in box sets. each season was in 2 volumes of 6 or 7 discs. total of 14 volumes for all 178 episodes.

there is about 14 Pal discs released in UK and Germany.

TNG seasons 1 tru 4 are available on Blu-ray disc and season 5 will be out tomorrow. they are remastered editions with fx are enhanced/redone/cgi'ed. All previous DVD editions used same masters as LDs but has inferior video quality.

I have seen my favorite episodes of TNG season 6 just 3 times on ebay, and from season 7 some never. But there where lot of complette TNG season for sale and all at about 100 usd, if SH to europe where not much much more than the value, I would have bought double tribble super combo, ...
Just a advice, you would never be getting complete at buying single discs, at SH kills, just buy some favorite doubles , and get a whole collection. I have USSA and Japan, i like the japan boxsets much more, but I have no DVD, just says all >> they display very very cool