The problem is not caused by Nero directly.
Usually it is caused by a missing VCRedist module.

To solve the “atl100.dll is missing” problem on your system, it will be sufficient to install Microsoft Visual C++ 2010 SP1 manually. You can download Microsoft Visual C++ 2010 SP1 from following link:

http://www.microsoft.com/download/en/details.aspx?id=8328

After the manual installation, the error message will not appear again.

Please go to:
http://www.nero.com/ena/tools-utilities.html#tab5
Extract the zipped file on your hard drive using WinZip or WinRAR. Start the tool by double-clicking on the EXE-file. Once the tool ran successfully, you will find a file called "NeroSupport.cab" on your desktop. Please attach the file "NeroSupport.cab" to your e-mail and send it to techsupport@nero.com.

The following information will be collected in the NeroSupport.cab:
Nero Infotool, Nero log files (including installer log files), MSInfo, DXDiag

When you're editing video files on [Video Edit] screen of Nero Vision or Nero Video, you can always check those files by a playback on a preview screen which is at the top of left of the sceeen, so you can figure out how the video will be done after the edit.

When you find your video doesn't playback on the preview screen and plays fine at elsewhere of Nero Vision or Nero Video, This is caused by the chipset built in your system.

Due to the function of multi-layer editing, video playback at the preview screen runs using a different architecture than elsewhere in Nero products which generally requires the latest Direct X technology just like other media editing software products. And if you find your video doesn't play corrently or just a black screen is there when staring a playback, it generally occurs because of a chipset built in your system, and, generally is because your chipset is an older version than the current version which is generally compatible with currently available computer with Windows 7 running.

So if you meet this kind of situation, the only solution for this issue is to replace your chipset with a new one, or hence if your system is some years old along with the chipset, we highly recommend you to find a new computer with the latest chipset built in.

At the time of your first installation of Nero product, you are able to proceed the Patent Activation (for details, please refer an installation guidebook) 5 times. After the procedure fails for the 5th time which is the initial limit, this feature gets locked.

To unlock, please feel free and contact the Nero technical support team so they will unlock it, and you will continue proceed and activate the feature.

This means the drive is not ready or properly recognized on your PC. This is a driver issue so basically there's nothing we can do with softwares including Nero to control the drive status to fix this issue. This case is very much likely due to the lack of enough power supply for the drive or some other light causes.

Please check the following,

- Is the Disc Drive PC built-in or USB connected?
1. If it's built-in, please check if there's any firmware update available for your drive.
2. If it's USB connected, please check and try the following,
A: Insert the USB cable into another slot to see if it works.
B: Please check if there's any firmware updates for your drive.
C: Please check if your drive has a slot for AC adapter for power supply.

If the above doesn't solve the problem, please contact the seller or manufacturer of the drive or the PC with the drive built-in.

BDMV or BD-MV (Blu-ray Disc Movie) is a Blu-ray video format with menu support. Commonly used for movie releases (commercial blu-ray discs)

HDCP (High-bandwidth Digital Content Protection) is a form of digital copy protection developed by Intel Corporation to prevent copying of digital audio and video content as it travels across DisplayPort

HDMI (High-Definition Multimedia Interface) is a compact audio/video interface for transmitting uncompressed digital data.

From Blu-ray to HD video, if you want to create your own videos, Nero 11 makes it easy to create cinema quality movies in the highest definition quality. Import from the latest AVCHD camcorders and output with SmartEncoding to Blu-ray Disc, AVCHD, AVC HD or MPEG 2 HD for the fastest video output with superb playback.
Nero 11 supports Blu-ray Disc playback with Nero Kwik Blu-ray App.

• Start screen simplifies access to all key tasks for creating, editing, authoring video
• Import directly from Windows Live Movie Maker
• Direct switching between Express Mode and Advanced Mode within the same user inter-face
• New video and audio effects
• Simplified PiP Express Editing
• New advanced audio filters
• Flexible SmartEncoding
• Complete AVC GPGPU hardware accelerated encoding
• New HD preview
• Improved background rendering performance

Nero Video replaces the name Nero Vision.
Nero Video is designed for creative enthusiasts who want intuitive features to create extraordinary, pro-style movies. Easily produce amazing videos with easy-to-advanced video editing workflows and the option to create with multi-track editing, advanced Picture-in-Picture and video effects with full key frame control, SmartEncoding and more.

• Express Editing Storyboard – simplifies editing without the need for multi-track timeline complexity
• Switch from Express Video Editing to Advanced Video Editing within the same user screen for advanced multi-track and key frame control
• Import Microsoft Windows Live Movie Maker projects
• Integrated Nero MediaBrowser for access to Nero Kwik Media library assets
• Nero Picture-in-Picture (PiP) Effect Generator automatically groups effects in Express Editing as a storyboard element
• Improved SmartEncoding for faster video file output
• Flexible SmartEncoding allows for compatibility to more device formats
• GPGPU hardware accelerated AVC encoding (NVIDIA Cuda, AMD APP Acceleration, Intel Media SDK)
• New start screen provides intuitive user interface improvements and access to functions and tasks with three main categories: Capture, Edit & Import, Create & Export
• New Express video and audio template effects
• New Advanced audio template effects

A key frame is a term taken from animation and filmmaking and is used in video editing in a similar sense. Basically key frames define the starting point and the end point of a transition that is to take place in a film sequence. Within a sequence you can set a number of key frames i.e. for the start and end of a fade in of a video sequence, or a change of colour, or the change in size of a picture within a picture. These key frames are set on a time line and are tied to single frames (pictures).
Once you have set the key frames and defined the appearance of the result in the end key frame, the software will calculate the changes that have to take place in between these key frames, so that a transition will appear smoothly.

BDAV or BD-AV (Blu-ray Disc Audio/Visual) is a consumer-oriented Blu-ray video format. It is used for audio/video recording (selfmade blu-ray discs)