I am new to CDLC with PS3 as well. What I have learned is that you do not need to "jailbreak" your PS3, you need to enable the use of "homebrew" applications. The video linked below shows how to install Homebrew enabled firmware (HEN) and a homebrew app called Multiman that will allow for FTP. Then use Filezilla on your PC to transfer songs (*.edat files) to you PS3 using FTP. Sometimes a song is available only in the PC format (*.psarc files). Download the Rocksmith Toolkit on this site to convert to PS3 files. Hope this helps.
