Just a heads up, after hearing about this issue from several other people, including a few close friends and several Game Stop studs, it seems the PS4 may be having its own rendition of the dreaded red ring of death that at one time plagued the XBox 360. This morning my PS4 started randomly ejecting game disk during game play. This happens at completely random times, and once the game ejects you are sent straight to the home screen. The best part is, if you are saving game data while this happens, the file will corrupt itself and you will essentially lose all game data. So play at your own risk.
I looked online and tried just about every solution out there short of opening the case which would void my warranty but nothing worked. After doing a little more some research it seems the issue I am having is quite common and is happening to lots of systems and aside from offering one solution to this problem that can be found on the Sony website
that does not work, Sony has yet to give any serious acknowledgment to the issue. Luckily for me I have one month left on my factory warranty so I'm in luck but without it you essentially have a $400 Netflix devise that Sony will not fix after one year. Just a heads up for those thinking about buying a PS4 either for yourself or your kids, keep the receipt and buy an extended warranty, we live in the era of cheap and rushed manufacturing people.