The Firmware Page

Recently someone send me a DVD-rom drive formerly installed on a PC of brand, for it's not good at reading some of my dvd disc, I looked into its lable, only got the information of ROM-118, when opened, there is an ACER trade mark. Detected by some of the softwares I downloaded, said version L.41, DVD-rom. This was produced in 2001, I deduced it is DVP-1040 from Pioneer, but not sure. The IC is from MTK, I can not remember the model now, maybe MT1329 or something, can you help me to tell the model of this dvd drive?
Thank you very much.

Just run Discnfo on it and post the output/info here.

I flashed "Pioneer DVD-500M v1.07 RPC-1 (48x)" into it, and this does work. Formerly I thought it is "Acer/BenQ DVP-1040A " maybe I was wrong, for "Pioneer DVD-114 v2.06 RPC-1" doesn't work.
"Driveregioninfo" told me my DVD player is region free, but after I changed my region several times in XP to test, the region code finally got to 1, I can not change anymore @#$%^&*( ... tested by other softwares, some of them told me the region code in it does not exist, what a weird situation!!! Does this affect my using it with different regions' DVD disc??

PERSONAL ADVICE
I'll remind the one who want to get his DVD player region free by flashing the firmware, you must unmount the virtual drive generated by "deamon tools" or that kind firstly, otherwise, you will got both your real DVD player and virtual one crash!!!

And thank you Moderator [_chef_] for your kindly help.

You have flashed the drive to region free, but you also need to run Regionkiller...

I'll have a try tonight, thank you very much.
Is there any way to tell which modle of ACER/PIONEER DVD is mine one?? I'm now so confused by this.
BTW, my dvd is a DVD-ROM, can only read dvd-* disc, is there any way to make it can read dvd+* disc?

that is because firmware 1.07 had no support for + MEDIA