Sony DRU500A, What media have worked?

I have just burned several DVD-R Verbatims at 2x using recently purchased media (15 pack from Best Buy). I have had great results also with the following media on the Sony DRU-500a: PrimeDisc 9.4GB DVD-R at 1X PrimeDisc 4.7GB DVD+RW at 2.4X Pioneer DVS-47A/U DVD-R at 2X Fuji DVD+RW at 2.4x Fuji DVD+R at 2.4x Sony DVD+RW at 2.4X Memorex DVD-RW at 1X Verbatim 4.7GB DVD-R at 2X (recent purchase) Two month old Verbatim would only burn reliably at 1X. 15 packs I have bought recently work fine. I'll never buy Memorex dvd-r's again - had 3 of a 5 pack bad (and that was pre-Sony on my A03). Most of these were burned with the 1.0c firmware; but I have also tested most of these with 1.0d. I'm using Nero 5.5.9.17.

I burned ok: SONY DVD+RW @ 2.4x (Using Nero) Verbatium DVD+R @ 2.4x (Using RecordNow MAX) Memorex DVD-R @ 1x (Using Nero) Memorex DVD-RW @ 1x (Using Nero, RecordNow MAX) After patch 1.0d CD burning preporation was faster :confused:

My Success Story is with the following media: Thats Write DVD-R 1x speed Pioneer DVD-RW 1x speed Sony-DVD+RW 2.4x speed I have used Recordnow Max 4.5 will all my burnings......with the latest pxengineupdate358 from the veritas site not from the stomp.inc site .....also i am using frimware 1.0d Haven't had success with (Coasters) he following: Imation DVD-R 1x Nashua DVD-R 1x (Both came out bad....so i would suggest for people in europe to use Thats Write ot Princo!!!!

the fuji's i have all burned reliably so far, only media i'm been able to try media is hard to come by period, let alone at prices i'm willing to pay

I just wanted to add that the Memorex DVD-R i burned to copy a PS2 game did not work in the PS2. But!!, after making an image from the Memorex with DVD Decryptor and then burning that image to a Ritek with Nero, the game worked. So... it REALLY is the media!!!

I bought some ProMedia DVD-R and DVD-RW from TigerDirect because they were so cheap that it didn't matter to me. They have all worked great! I also bought a Memorex DVD-R and it failed on me even with the latest firmware in the Sony. I think I will stay away from Memorex from now on too.

Update: Using the new 1.0f Firmware from Sony: PrimeDisc 9.4GB DVD-R now burns at 2X! This saves me a lot of time because I prefer the double-sided media. My Pioneer A03 will only write 1X on these. Nice job Sony!