My ps3 plays normal dvd but doesnt load games or play bluray disc

This is the 2nd most common problem with PS3's. This isn't a bad problem. Your laser/lens will need to be replaced. There are many videos on youtube if you would like to do it yourself (I would advise you not to). I recommend that you find a technician who has experience. There are many things that can go wrong.

If you do, you must disassemble your drive and take out the laser to see exactly which laser you will need to purchase

Not sure what you are playing it on. A BLURAY disc needs a BluRay compatible disc player, PS3 has one built in. Most PC DVD drives dont play BluRay as standard. Normal HOME DVD players of course cant play them either.

the read files are corrupt for bluray and DVD discs.

It's quite likely due to a weak Blu Ray laser. The DVD and BluRay are 2 different lasers so it could still be able to read and play DVD/CD but not the BluRay games.

check your blueray settings updates can reset them sometimes.

Your PS3 may not be freezing entirely. Look in the top right hand corner of the screen, if the loading sphere is there you've nothing to worry about, and I would reccomend just waiting it out (it unfreezes). If it is not there it is a legitimate freeze and would reccomend sending it off and/or updating the system firmware.

you most likely have a Ps3 Blueray Lens Burnout
If you are not in warranty then try this link
http://progamer.cc/blog/ps3-laser-kem-400a/how-to-replace-a-ps3-bluray-lens-guide.html/

It might not be set to auto-run. Instead, you'll need to use the XMB to select the disc which will appear under "Games" if it's a game or "Video" if it's a DVD or BluRay

This issue is with the disc not your system.. it happens glad you got it fixed!!

is it playing bluray discs? if not its a problem with the last download. It'll still play cd's ps2 games just not ps3 games or bluray, sorry to say but its a job for sony, call up your local help line(number can be found on the website) and they will arrange a replacement or to repair yours. There service is normally good. Hope this helps.