Yeah I've had the same experience with the Czech, Slovak, Lithuanian, Latvia, etc films. Able to discover many great looking movies, so many I can hardly keep my focus. But the subs only come occasionally. I suppose it's better than finding out the only copy has a gnarly Russian overdub.
But the shear quantity of these delightful Czech/surrounding area classics is dumbfounding. There must have been something in the water, particularly between the 60s through the 80s. I found several others from that region that I grabbed along the way. I believe most are shared here, some with subs, some without:
Paradize.89
balkonas
cekani na dest
Dívka s mušlí (this one looks especially interesting)
Grazuole (this one too)
Kam doskace ranni ptac (possibly not shared here)
Sojky v hlave
EDIT: I found a higher quality file of Robinsonka, most likely from the same original source as it bears the same watermark. I think it came from uloz (I downloaded it some weeks ago). I've replaced the eMule links in my post above. Sorry, Night, I know you probably downloaded the other one.
Like this post to see ed2k links [2.59 GiB]