Thank you all for the input.
Let me clarify something . . .
1. If I purchase a Blu-Ray player for my my laptop, would I be able to plug in to any laptop's old DVD slot and play the disc? One of my computer is 5 year old.
2. Would the Blu-Ray player R/W DVD?
3. Do I need any special software?
On my newer laptop (2+ yrs), I have replace the DVD with a (DVD caddy+HDD). I bought a USB cable to connect the internal DVD that was removed, to the laptop in case I need to use the DVD to read or write. Would that cable work with the Blu-Ray player?
I found
this Blu-Ray player one eBay. Do you think it will work with the USB cable to hook it up as an external drive?