I upgraded to a new firmware version yesterday. The changes listed are as follows
HDR-7500T S/W(Oct. 2014 / Latest Software) - Ver. 1.08.25
New Features and Fixed Problems
• Improved Series Recording capabilities
• Updated ABC iView App
We have since had one incident when replay of a prerecorded show froze. I had to turn the unit off and then on to unfreeze it.