Diff between Runtime and Emulation Environment of personal java

[samindla venkateswar rao]

Hi all,
In the Java TV API Reference Implementation it was suggested to use
Personal Java RUNTIME Environment 3.1 version...but i found only the
source of it and the not the implementation.
However i found Personal Java Emulation Environment 3.1 version and it
had "classes.zip" in lib directory for which i was searching.
Is there any difference between these two Environments? If yes,which
exactly should i use for Java TV API Reference Implementation?
Again if at all i have to use Personal Java RUNTIME Environment 3.1
version then where can i get this implementation? or is there any
other way to run from the source which i have it .
Kindly help me......
Thanks,
venkatesh