-n my previous life I used to align laser head as a living (this is when CD burners cost $10K), even the tiniest misalignment can result in errors in following the tracking (aptly named "track following error"). From your description, it seems like the laser-mech has TFE problem. Coupled that with the cheapening of dual-layer blu-ray manufacturing, it is likely you'll need to change the laser mech (if it's still under warranty -- nobody aligns consumer-level laser heads).
If it's not under warranty, it'll cost you around $150 to $200 in parts and labour (I can change a laser mech and flash its internal firmware within 30 minutes, so actual techs can do it faster).
I'd rather forget about the older machine and just get a new one.
Another thing I dislike from the BDT-500 is the 2D to 3D conversion. It's one of the least realistic in my limited experience. I personally use KanexPro 2D to 3D converter.
If it's not under warranty, it'll cost you around $150 to $200 in parts and labour (I can change a laser mech and flash its internal firmware within 30 minutes, so actual techs can do it faster).
I'd rather forget about the older machine and just get a new one.
Another thing I dislike from the BDT-500 is the 2D to 3D conversion. It's one of the least realistic in my limited experience. I personally use KanexPro 2D to 3D converter.













For this reason I maintain 3 transports in my main setup. I figure one of them will play the disc.




