This is an old thread but I just wanted to update the following.

There is a NEC to HEX converter that can now be found here :

[Link: awe-europe.com]

I had to program a Definitive Technology SoloCinema XTR with URC Total Control and all the drivers provided from URC are NOT working.

The technical data that I received from Def Tech was in NEC protocol. Using the previous link, I was able to convert it to the Pronto format and then copy the string in Total Control and finaly get a working driver with all discreet codes.

For example, the Def Tech data sheet state the following:

Power ON = 0x0A 0x58 0x55 0xAA

I then formated the following in the converter 0A58 55AA and this is the result for Pronto Power ON

0000 006D 0022 0002 0155 00AA 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0015 0040 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 0015 0015 0040 0015 05ED 0155 0055 0015 0E47

The Def Tech sound bar finally responded to the pronto code !

Voila !