Sony VRD-VC30 - Manual (Page 16)

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When a new disc is inserted
When a new disc is inserted, the disc will be formatted automatically. If the
new disc inserted is a DVD+R disc, a message prompting you to select an input
source appears.
To continue with operations, press M or m to select an input source to record
from, and press the (Select) button.
Note
If a disc that cannot be recorded on is inserted, an indication message appears. If this occurs,
confirm all the compatible discs and replace the disc.