Lenovo extenal DVD-RW : Use w/o power adapter?

[ahlip]

Hi all,

I have just taken delivery of a X200 (T9550, 320GB, 6-cell) and also got a Lenovo USD DVD multi-writer w/lightscribe in the bundle.

The instructions and warnings all strongly request user to operate this writer with the provided 5V wall power adapter. I tested connectivity with just the USB cable providing power and it seems fine. I know of other ppl with USB DVD (non-lenovo) who are also using it without wall power.

Question from me is: Any one has experience problems using it without the wall power?

regards,
Lipz

[donzoomik]

I have one Liteon drive, that doesn't function properly without extra power. However my Lenovo (seems to be Liteon OEM though) works fine.