Dell XPS 15 L502x never burned a single CD/DVD since purchase.

I had bought Dell XPS L502x exactly 13months back. Since its an era of Flash Drives, I rarely use my DVD Drive to read/write. My DVD Drive reads most of the DVDs. But it never burned a DVD successfully. I have tried writing DVDs occassionally over last one year, and when It fails, I thought its due to the poor quality of Disc. Yesterday I tried to Burn Windows 7 ISO to a DVD to recover my PC at home. After 3 failure to write disc.
I decided to test my drive, I bought MoserBaer PRO DVD-R, DVD-RW, DVD-DL and Sony DVD-R, DVD-RW, DVD-DL.
After wasting first four DVDs in the process, I decided not to waste last 2 Sony DVDs.
I am out of Warranty. What should I do?

I use PowerISO, UltraISO, Win7 USB/DVD Burn Tool.
I know Its not a problem with Softwares.

First of all Thanks for your reply....
I know to create Bootable Windows USB Drive.
But the problem is Warranty expired, I only got to know about this faulty DVD Drive only after year. I was so stupid. I trusted Dell, But I now feel so bad.

Thanks for the troubleshooter link. After Diagnostics It found no errors. I am updated with latest firmware driver for optical disc. But It was no avail.
The link you provided tells that the drive may not support some brands of DVDs. How could I know the supported brand? Top 2 brands Moserbaer and Sony failed to support...

A small conflict identified few hours back.

Driver found on dell website for XPS L502x with service tag 78V8DT1 is "TSST TS-L633J 12.7 SATA Trayload 8X DVDRW Firmware Update"

But My device manager shows "TSSTcorpDVD+-RW SN-208BBD300". When I tried to install downloaded driver, It shows firmware is not compatible with selected drive.

Oops. I somehow managed install the driver by dragging the '.BIN' file into the Tsdnwin.exe.
Now my drive is totally dead. The drive status LED is glowing all time and drive not ejecting, 'An error occured while ejecting 'DVD/CD-RW''

Please sevenforum people help me... I am posting here alone with no reponse for my query.
Please help me.

Hi Sandeep. Thanks again.
Can you offer me a link to flash the DVD drive default firmware driver that is already present in it. Before I updated the original firmware present in the DVD drive,the firmware is 'TSSTcorp DVD -RW SN-208BB' version: D300
If you could provide it, I will replace the wrong firmware update with orginal one. So that My drive could atleast Read discs.

Also remove that R304507.exe, R304505.exe being showed as Firmware update for DVD Drives of XPS L502x like mine.

Thanks for the link to Expired Warranty support.
I will buy that new ODD and Since warranty is expired, I could screw the new one myself.
Provide me the link to the original firmware of 'TSSTcorp DVD+-RW SN208BB version: D300'.