Vol2. expands the tracklist and offers a new way to purchase tracks for PS3 (albeit an older purchase model akin to PS2).
To answer some reviews questions here are quotes from Threespeech's interview with a sony spokesperson.
"'As with SingStar on PlayStation 2, players can swap between discs and play the 30 tracks from each disc. This is done by entering the carousel, pressing select on the controller and following the onscreen instructions."
"Will songs already downloaded and accessed on the first PS3 SingStar be accessible when players use the second disc?
'Yes, every track downloaded from the SingStore will appear in your carousel and be available to play as normal."
Will the Harmony Mode on SingStar Vol 2 be available to owners of the first SingStar blu-ray disk? Will this be as a downloadable upgrade and will user's be charged for it?
'The new Harmony mode will be available as a free upgrade via the PlayStation®Network. It will be compatible with the specially selected duet tracks. Once the upgrade goes out, we'll be making more of these songs available in the SingStore, and there is a great selection on the vol. 2 disc.'
As for the songs featured on the disc going onto the store, they say theyre working on licensing as its different to disc based media...the next update is on the 27th June, so perhaps its worth waiting until then. Unless of course you have a small HDD in your ps3, in which case buy the disc and save some space.
Props to Sony for giving consumers a choice though I say and remebering that not everyone of the 13million people who bought singstar on PS2 has broadband.