Choppy playback on Sony BDV-E570 Blu-Ray

Hi and thank you ahead of time for any help you might give!
I've been using Serviio to stream (to my Sony BDV-E570 Blu-Ray) TV shows I record on my computer's TV Tuner (HD digital recordings MPEG-2 .ts files). Up until this week, I have had no playback problems. Now every show I watch gets "choppy" or "stuttering" video within a short time of starting. I have no problems streaming online videos, just my own recordings. I was storing the videos on an external hard drive, then switched to my computer's main drive and still choppy.
My computer is connected directly to my cable modem, and my Blu-Ray player is connected wirelessly.
My computer info:
Dell XPS M1530
Processor Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz
Memory (RAM) 3.00 GB
Graphics NVIDIA GeForce 8600M GT
Windows Vista (TM) Home Premium
System type 32-bit operating system
Any help would be appreciated, thank you!
I've been using Serviio to stream (to my Sony BDV-E570 Blu-Ray) TV shows I record on my computer's TV Tuner (HD digital recordings MPEG-2 .ts files). Up until this week, I have had no playback problems. Now every show I watch gets "choppy" or "stuttering" video within a short time of starting. I have no problems streaming online videos, just my own recordings. I was storing the videos on an external hard drive, then switched to my computer's main drive and still choppy.
My computer is connected directly to my cable modem, and my Blu-Ray player is connected wirelessly.
My computer info:
Dell XPS M1530
Processor Intel(R) Core(TM)2 Duo CPU T7500 @ 2.20GHz
Memory (RAM) 3.00 GB
Graphics NVIDIA GeForce 8600M GT
Windows Vista (TM) Home Premium
System type 32-bit operating system
Any help would be appreciated, thank you!