Xbox one time i was playing dead rising and my disc drive start to make loud grinding/stratching noise. I turn off my console and turn it back on. now any disk i put in my box won't read and it says unplayable. and every time the box reads the disc it will make 3 grinding sounds(crk crk crk) and a faint constant beep will follow it

your dvd rom drive is gone you can get this replaced by someone that knows how to do it but if its still under warranty send it to Microsoft

Mine is loud also when playing games. When playing DVD's it is not. I think it is a factory defect on some of the systems. I would not attempt to pull apart the DVD drive and try and fix it. It is working and on an XBOX 360 you should feel lucky that it is.

you broke your dvd drive send it back to microsoft

If your xbox box it's new I would take it back and get another one, becase you do probable have problems with your dvd drive and it will keep scratching the games. the laser on the drive doesn't work as hard when playing a music cd than when it plays a game or a dvd.

If you don't want to take it back, then play a couple dvds and if it reads then fine then you could try again. it shiudn't take more than ten second to read a game so if its taking longer just get it out.

Even if it is still playing dvds it might be the dvd-rom drive, usally it spins a game faster than a dvd. Or it could be the harddrive if it was trying to save something. try to download a demo or something to check the hard drive. 

Depending on the age of the system, replace or ignore.
Its your DVD drive, unfortunatly most drives are noisy -FACT- so sometimes you have to just live with it- check the back ,if manfactured in 2005 ( a lot of bad drives from this year) might be worth ringing microsoft to see if an exchange is possible.-
But if its not showing any loss of play/loading or scratching the discs - or showing error- please place disc in a xbox 360 console...You may just have to put up with it.

no that's not good the motor is working over time you need it looked at quick or the moter will give up and then it will be a bigger job more money try thhttp://www.gamevania.com/XBOX_360/repair.phpis site first.

u need a new drive

Crack open the DVD case and see whats going on and try fixing it yourself. OR Buy a new drive off of eBay and transfer the firmware key over from the old drive too the new one.