After finding out if Edirol will repair de R-09 fo a reasonable fee, what are you planning to do?
Why don't you try repairing it yourself?
I do not own an Edirol, just a Tascam, but it's not too difficult to solve the problem. The problem is to find the right part and/or a better one, preferably a 1/8" screw-type socket. But I don't know if it will fit.
Another option, which are tougher, more durable and more reliable connectors are 1/4" jacks and mini-XLRs, but they would require some external adaptors, cabled or fixed externally to the Edirol.
Just some thoughts.
Carlos