Sony PCG-GRX700P User Manual page 49

CD Writing Wizard
Do not strike or shake the computer while writing data to a disc.
For more information about CD and DVD writable media, visit
http://www.ita.sel.sony.com/support/news/dvdrwinfo.html.
T he read/write drive letter des ignation may vary, depending on your s ys tem's hardware c onfiguration.
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