Wont play disc

Microsoft Xbox have some common problem like red lights, E74 and Disc Read Error. Microsoft is providing extended warranty for red lights problem, Means you will have to spend some money in order to get this problem repaired from Microsoft also you will have to wait for 3-4 weeks to get your Xbox back. There are many reasons disc read error can occur in your Xbox like your disc might not be clean, laser might also be dirty and many more common problem. I would suggest you to first clean out the disc, you are using. If that don't solve the problem you can also take the help of DIY guide available at Internet. I think you have got good no. of options to get your Xbox repaired, Choice is yours.

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you might check out the informative blog post at Xbox 360 Disc Read Error Fix

Hope it helps.