My work's Lenovo W530's internal drive doesn't burn discs fully.

Hello.

I have had this Lenovo W530, from work, since June 2015. I finally
started using its internal Mat****a DVD-RAM UJ8C0 (SB01) disc drive to
burn to small old CDs (unused CD-Rs & CD-RWs) recently. However, IT's
preinstalled 64-bit Windows 7 EE SP1's system image creator and
downloaded ImgBurn v2.5.8.0 (with a downloaded 247 MB ISO file) could
not fully write to my CDs. I had no problems erasing my old CD-RW. I
tried copying a very old burned 650 MB CD-R to its local SSD, and it was
fine. So, it sounds like this physical drive has write issues? Or is it
something else?

Thank you in advance.
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