hey andrea,
there are several reasons why you BD wont play on standalon-players.
– bad media
– to high bitrate
– standalone player can´t playback BD-R
I´ve created a lot BDs using adobe encore – also BDs that has gone to replication – they are all working fine.
I guess it´s depending on your encore-version. I have been using CS4 or CS5 and I know encore CS3 is a big, big mess…
I also would like to advice to use high quality media like verbatim or tayo juden.
habe you burned from within encore? if you burned these BDs with another burning-programm you might use the wrong file-format as well.
Blu-ray needs to have the UDF2.5-format.
cheers
danny