Do you know that there are several build numbers around, 1.00.0009, 1.00.0018, & 1.01.**** (afaik)? Mine is the 1st one out of the box w/ 500**** serial. The 2nd one are those out of the box w/ 501**** serial. And, the last one are those from Japan (after update?). The thing is, Sony has not released any software update worldwide until now!