A question

[Darth1701]

Hello guys,i'm new here so please forgive me if I make any mistake in the following post
in the compactbility list:
Disgaea: Afternoon of Darkness - ULUS10308 - Playable - r1610
what does r1610(and another r(xxxx)) mean???
if when playing a game in jpcsp and the dialogue voice isn't coming out(but the BGM does) what should i do??
that's all for now, thank you

r1610 means revision 1610, the latest is 2039, you can find almost all revisions here: http://buildbot.orphis.net/jpcsp/

About the voice problem: There is not much you can do. Try out the latest version, maybe it works with that version