DVD-Video is always recorded in OTP mode, but the video data is read from the beginning of the first layer towards the end of the first layer, when this ends not necessarily at the end of the track then reading is transferred to the second layer, but the video data commences from the same physical location that the first layer ends back towards the beginning of the second layer. This results in the video skipping or freezing up for some time as the laser head repositions itself and the system waits to start receiving data again. In OTP mode, the second layer is read from the outside of the disk. Before that Roxio 5. Its use was first demonstrated in October

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In OTP mode, the second layer is read from the outside of the disk. DL drives started appearing on the market during mid, at prices comparable to those of existing single-layer drives. I have used this solution many times. Also please exercise your best judgment when posting in the forums–revealing personal information such as your e-mail address, telephone number, and address is not recommended.


The drive with dual-layer capability accesses the second layer by shining the laser through the first semi-transparent layer. Sectors are sequenced from the beginning of the first layer to the end of the first layer, then the beginning of the second layer to the end of the second layer. A dual-layer disc differs from its usual DVD counterpart by employing a second physical layer within the disc itself. A simpler way to understand what’s written above is to think of the little hole in the centre of the DVD as the “inside” and the rim of the DVD as the “outside”.

The music players will play music recorded on the hard drive. I don’t believe I have ever had”.

Subject: CD & DVD not accessible – Forums – CNET

Retrieved from ” https: Sexually explicit or offensive language Spam: Otherwise the other results dvvd http: What possibly happened to trigger this unhappy situation like trying to remove a rootkit for example, or some unhappy use of regedit, or removal of software like Adaptec?

There are many causes. Knees- Every thing was working earlier in the month. Thank you for helping us maintain CNET’s great community.

Thank you all for your help. The only possibility is an MS hotfix that occured on andAug.


Flaming or offending other users Illegal activities: History of optical storage media High-definition optical disc format war. This was helpful 0. A common misconception is that the disc spins first in one direction, and then another, either for PTP or OTP recording, when in fact DVD-Writers always spin a disc in the clockwise 16d8.

Device manager shows yellow exclamation mark by both drives.

Subject: CD & DVD not accessible

I agree with R. SL stands for standard single-layer discs, while DL denotes the dual-layer variants.

Track this discussion and email me when there are updates. By using this site, you agree to the Terms of Use and Privacy Policy. See articles on the formats in question for information on compatibility issues.

Sorry, there was a problem flagging this post. Please try again now or 1×68 a later time. Its use was first demonstrated in October Optical media types Compact disc CD: This page was last edited on 15 Decemberat I will continue to explore some of your thoughts.