Well, it is up to you but it is like the old adage, an Oz. of prevention is worth a pound of cure. If songs are worth writing they are worth registering them at the copyright office.

It could be 10 years down the road when something happens. With that registration you have strong evidence if you need to go to court. True it doesn't happen very often but registration is cheap considering all the expense it would cost if you didn't have it and hundreds of dollars was involved.

If you are writing hundreds of songs you don't need to register them until you are ready to start pitching them. Until then just put them aside.

Ray E. Strode