>shiaobai
別這麼說，別忘了彼此提醒一下喔！^^

厚著臉皮問一下......到底到那兒可下載到1.0d~~1.0g的韌體啊?
我買來時是1.0e,後來更新為2.0e一樣4x當2x燒.......只好安慰自己多花的錢可能片子的穩定性會比較好,唉......
不過最近注意到一個,就是一時手癢把Nero---->Write----->Performance Maximum Speed選項給勾選,它就會先測速,結果測出Source(硬碟)竟然只有2.1~~2.7倍,並不足以支撐4x燒,怪了,我有在BIOS開啟UltraDMA啊(但在XP裝置管理員各項翻到爛就是找不到DMA選項),而且用的還是ATA-133的MAXTOR 120GB/8MB Buffer硬碟,難道是XP為了系統穩定在亂搞????

開啟DMA
系統管理員--硬體--裝置管理員--IDE ATA/ATAPI控制器
--主要或次要IDE通道--內容--進階設定值
應該可以找到你要的東西

我的情形跟你一樣，用NERO的測速結果大約是3x左右，
但有時是正常，就十幾x吧，但大多是3x，
我確定不是DMA的關係，因為我有開，而且我也試過SCSI硬碟也一樣，
甚至我還試過RAMDISK，還是一樣，我是WINDOWS 2000 SP2，NERO 5.5.10.20，我也用了1.0d的韌體，還是常常上不了4x....蠻不爽的，
如果你要韌體的話，留e-mail，我寄給你吧。

轉貼原廠更新注意要項：

DRU-500A/X /DRX-500UL/X Firmware Update

--------------------------------------------------------------------------------
Download the DRU-500A/DRX-500UL updater to your hard disk, unzip the file, and then perform the procedure below.


Important Note
When using Windows 2000 or Windows XP, log on to Windows as the computer administrator or as a user with administrator access privileges.
If you are installing The Intel® Application Accelerator (Intel Ultra ATA Storage Driver) in your computer, uninstall Intel Application Accelerator from the PC before executing firmware update. *Intel Application Accelerator (Intel Ultra ATA Storage Driver) may be pre-installed in some computers manufactured by Dell Computer.
Before executing firmware update, uninstall any packet writing software, such as [DLA], [DirectCD], [B's CLiP] etc, from the PC.
If you are using the DRU-500A, disable [DMA setting] in Windows before executing firmware update. For details, refer to [Help and Support] in Windows.
1
Connect the DRU-500A/DRX-500UL to your computer. Confirm that the drive is detected normally by your computer.
2 If a disc is loaded in the drive, remove it.
3 Close all other programs.
4 In the update folder, double-click "500A_20e.exe".
5
Select the drive in the "Detected Drive" and Click [Start Update].

Notes
If the message "You must restart your computer before updating. Do you want to restart your computer now?" appears, click [Yes]. Your computer restarts. Return to step 4.
If the message "Drive is not ready or contains a disc." appears, click [OK]. Select the drive in the "Detected Drive(s)" list and click [Confirm]. Follow the instructions on the screen. When you are done, click [Start Update] again and continue.
7 Click [OK].

The drive indicator becomes orange and the update begins.
Note
Do not turn off the power of the drive or your computer during the firmware update. Further, do not handle the drive or interface cable, or touch your keyboard as it may cause the update to fail or make the drive unusable.
8
When the update is complete, Click [OK].

The update is now complete.

*Windows is a registered trademark of Microsoft Corporation in the United States and/or other countries. Other company and product names are registered trademarks or trademarks of their respective owners, although the TM and ® marks are not used in the text.



© 2003 Sony Corporation. All rights reserved.


我的機子是500AX，剛買是韌體是2.0C，可燒錄四倍速，一時手癢更新至2.0E，燒錄速度馬上降至0.7X，重灌了不知有多少次，結果是無效，最後找了原廠注意事項，發覺也許我灌了不少燒錄軟件，造成更新了韌體卻上不了4X，所以最後我用GHOST先備份起來，FORMAT C硬碟，乾淨之後在重灌作業系統後（先不安裝其他軟件）馬上更新500AX韌體，在GHOST回去原來系統，現在燒錄即可上至4X，沒有問題，以上供各位參考。

因為是公司的機器, 所以不能安裝使用盜版的軟體, 我只有用原廠附的
VERITAS RecordNow 目前試過燒錄兩片 Video , 都在 40 分鐘內燒錄完畢, 倍數我到是沒有注意如果以時間推的話, 約在 3-4 之間. 家用撥放機可以撥放 (爛爛的 Afreey 3630, 以前燒很多 VCD, 撥放到 45 分鐘左右就當機)

燒錄片: RiTek 4x
韌體: 1.0e
燒錄軟體: VERITAS RecordNow
影片來源: The Rock DTS, FACE OFF DTS (用 DVD2ONE 重壓)
環境: P4_1.7G, 1G DDR@533, ATA100, Pioneer DVD
IDE1: HDD, DVD
IDE2: DVD RW

所以我猜會不會有一種可能, 軟體問題?

40分鐘兩片還是一片啊
一片的話那是連 2X都沒有上耶
我燒一片全滿也才 30分鐘耶 -- 2X
4X是 15分鐘就應該好了耶