This is longtail jw player, available in sitefinity marketplace.
i earlier got it working in sitefinity 3.7.
but i see lots of differences in sitefinity 3.7 and 4.0 file structure now.
i am now not sure if any market place control/templates available in market place be working in 4.0.
I also tried Emerald Theme/templates, those are also not working and giving telereik.cms assembly missing error.
I checked in 3.7 version there was telerik.cms dll and several other dlls those are now not there in 4.0.
It seems realy very risky to go further with 4.0 as of now.Please suggest if i should stick with 3.7 and should wait to get this version stable.