Is my LiteOn XJ-HD165H firmware CH11 the cause?

Hello.

I recently bought a Sony DRU-500UL (external) by using FireWire interface.

After burning many DVD-R (Imation 2x, Pioneer 2x, Verbatim 2x) with Nero 5.5.10.20, I remarked that my LiteOn XJ-HD165H with the firmware CH11 takes 20 to 25 seconds to analyze the DVD-R after insertion.
I don’t have this problem with the DVD+R & the DVD+RW.
The second point is that when I insert the DVD-R in the Sony (the writer), it regconizes the DVD-R within 5 to 7 seconds.

Is my LiteOn in trouble ?
(I just bought it 30 days ago)

Thank you.

I can’t say for sure since I do not have the right equipment to test it out, but it may be normal to use some time longer to identify -R discs…

Thanks for your answer, OC-Freak.

I don’t have the chance to test with another DVD drive or to buy a new one.
I just want to know if someone else has the same problem as me but with another DVD drive brand with DVD-R ?