No.
Blu-Ray players are compatible with DVDs
"Yes, online tech support is available for help with most blu-ray players. You should go to the official website of the brand your blu-ray player is and look for tech support or a way to contact the company."
Yes, if you have a CD drive that supports the Blu-Ray format. This is independent of the operating system - you can play a Blu-Ray disk on an XP machine if you have the correct hardware.
Yes
As the Apple does not make their computer support the Blu-ray playback, you need third party tool to help. So an external Blu-ray drive is necessary. You can use the Samsung SE-506A. In addtion, you also need a Blu-ray Player Software like the Aurora Blu-ray Player, Macgo, DVDFab, etc.
I think blu ray reader is a blu ray drive and blu ray player is a blu ray player
No. Blu-Ray discs can only be played on Blu-Ray players
Blu-ray is correct, though I have seen Blu ray and Bluray on some websites.
No, Blu-ray Burner is an external drive, through which you can play blu-ray discs, while blu-ray player is a software to play blu-ray files. Common blu-ray player like Macgo Blu-ray Player, VLC Media Player, and so on.
In my opinion, a blu-ray player is used for playback Blu-ray movie, while a Blu-ray reader can deal with both movie and data Blu-ray discs.
As for DVD ISO movies, you can use the Apple DVD player to playback. But Apple inc still make their computer not support the Blu-rays. So you need other tools to help you play Blu-ray ISO on Mac. As far as i know, the Macgo Blu-ray player allows the Mac player to play Blu-ray ISO on Mac direclty. What's more, the latest VLC can also support the Blu-ray ISO playback, but only the non-commercial ones.