Securom

I just tried to backup with CloneCD a 1:1 backup copy of Diablo 2: Lord of destruction (protected by Securom-"new") with a new burner I bought today (LG GCE- 8160b 16x10x40) but didn't get a 1:1 copy, (the CD reads fine on explorer but asks for the CD when tried to play the game).

I did it with CloneCD 3.0.8.2 and checked only Read Subchannel from data track and read subchannel from audio track, and writing in RAW-DAO mode. I thought this burner could read sub-channel info from both data and audio tracks (the LG x12 model is listed on the clonecd list as such). My question is, is it possible to obtain a 1:1 backup of a backup cd protected by Securom protection? (i thought it was, but I'm not sure anymore). How can I discover if this burner can read/write subchannel info, is there any software that can test this features?
Any chance it will work if I use raw sao+sub writing mode if raw DAO didn't work? Help!

(i have both clonecd and nero but i don't see any info screen that reports this)

P.S:

-I own the game, but don't have it here at this time, only the backup, so I cannot try to backup the original CD for some time.

-The backup copy that works was made with other burner (HP 9150) and works flawlessly in any CD-ROM, thats why I used it as source to this copy.

-I dont have any other way of making the image, my Pioneer DVD 103s x6 does not read subchannel info for sure (i heard something about a firmware that allows this but don't think it is true, is it?).