Sir Paul tells Billboard.com that "it's all happening soon. Most of us are all sort of ready. The whole thing is primed, ready to go - there's just maybe one little sticking point left, and I think it's being cleared up as we speak, so it shouldn't be too long."

"It's down to fine-tuning, but I'm pretty sure it'll be happening next year - 2008," he said.

Sir Paul adds that any delays in bringing the fab four's music to the internet have been due to "contractual" issues, as well as deliberate planning by all parties involved.

"You've got to get these things right," he said.

"You don't want to do something that's as cool as that and in three years' time you think, 'Oh God, why did we do that?!'" © 2007 Australian Broadcasting Corporation