Help with burning too slow with new firmware

I have a 3500AG w/ L&G V2.TB RC2 and Memorex 8x DVD-Rs.
When I try to burn dvds in Alcohol 120% at anything over 4x it says "Illegal speed (whatever speed I tried burning at) for this medium running on 4x.
Before I changed firmware I could burn the media at up to 8x, why can I only burn at 4x now?
thx in advance

Seems that this speed isn’t supported in the new fw release.
I think Liggy and Dee decreased some speed to gain a better quality.
But I cannot say exactly without the correct media code of your Dvd-Rs.
Just scan them with DVD Identifier and post the media code, please.

What version of Alcohol are you using.

Upgrade Alcohol to newest version.

Unique Disc Identifier : [DVD-R:CMC MAG. AE1]

Disc & Book Type : [DVD-R] - [DVD-R]
Manufacturer Name : [CMC Magnetics Corp.]
Manufacturer ID : [CMC MAG. AE1]
Blank Disc Capacity : [2,298,496 Sectors = 4,489.3MB = 4.38GB (4.71GB)]

[ DVD Identifier - ]

that is what dvd identifier gave me
and i have the latest version of alcohol

If Dee/Liggy set the speed for CMC MAG AE1 at 4x I know why. I have some Philips ( same MID) and if I don’t burn them at 4X they will pixelate and freeze frame on our Sony 301/400 disc players.

CMC MAG AE1 are supported at 12x in LD 3500 2.TB.

Is DMA enabled again after Firmware flash.