How To: Create a VCD disc

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How to Create (Author) a Video CD (VCD)

A Video CD can hold about 35 to 60 minutes of video, along with a stereo audio track. Most DVD players can play VCD discs, which are recorded to CD. The video quality is similar to VHS tape. In order to create a VCD from your captured video files, you must first encode the video to VCD format. When your video files are in MPEG-1 format, you are ready to create a VCD. This process is called "authoring". Authoring is the process of choosing the video segments to include on the disc, as well as creating the menus. GEAR will automatically generate all of the necessary files and structures when you are finished authoring the title.


How to author a VCD title

To author a VCD, choose "Author VCD Title..." from the "Author" menu.

File:AuthorMenu.jpg


The New Video project dialog box appears...


Give the project a name, and choose the video format (NTSC or PAL), and the disc size. Press "Create" to start authoring the title. File:NewVCDProject.JPG


The VCD authoring window appears..


File:AuthorNTSCVCD.JPG


You can "add video titles" to the title. This button will let you select video files that are encoded to VCD specifications (MPEG-1). The audio should be contained in the same MPEG file as the video.

The "Menu Type" allows you to select "No Menu" (in which case the video just plays, with each title played in the order that they are arranged), or "Title Menu", which automatically creates a menu that allows you to access each title individually.

You can double-click the menu title text, and edit the label (in this example, the first label is "Scuba Diving "). You can move titles up or down, to change the order of playback, or you can delete a title from the disc.

Under "Menu Title", you can enter the title that will be at the top of the main menu.

To adjust the video frame that will be used for the menu thumbnail, select the video title (click on it), and select "Select Video Frame" (or just double-click on the title). The video frame selection window appears...


You can play and preview the video, or use the slider control to go to a particular place in the video. When you have found the best video frame (still picture) to represent this video title, choose "Select Frame". Close the window when you are finished. The thumbnail displayed in the authoring window, and on the menu should now be the chosen frame. File:videoframeselection.JPG


To set your menu options, select "Menu Layout and Graphics" from the video authoring window. The menu editing window appears...


Each title will automatically be arranged with a thumbnail video still picture. You can select the grid to place each title thumbnail on. Font sizes, type, and color can be adjusted from the font menu tab. Select a shadow offset to add three dimensional depth to the text on the screen. A background image can be selected, and faded if necessary. To select a frame of video as your background image, press the ".." button next to the background image filename. A window will appear asking you to select a file. Set the "files of type" to video, and select the video file that you want. The video frame selection window will appear, allowing you to play the video to choose the point that contains the best frame of video for your menu background (this function is described on the preceding page). Press "select frame" when you get to the video frame that you would like to use for your menu background.

When the menus are ready, press OK.

File:DVDMenuSettingsEditorGraphics.JPG

When your VCD is authored, press "Create VCD" to create your title. This will return you to the main GEAR project interface. Your new VCD title will be loaded into a new VCD project (volume) in GEAR, ready to write to disc. You can add any additional files to the disc (in the remaining space available), and burn it when you are ready.

Note: VCD titles can be played back in most, but not all DVD players. They can also be played using a PC with the appropriate media player software.


Encoding video for a Video CD


GEAR creates VCD titles that support the VCD 2.0 specification, which supports playback control (PBC). A VCD requires MPEG-1 video encoded at a resolution of 352 x 288 for PAL (the European video standard), and 352x240 NTSC (the US video standard). The video is encoded with constant bitrate (CBR), which means that every frame is encoded with the same number of bits. A bitrate of 1151 kbps results in video quality that is roughly equivalent to VHS tape. Video quality can suffer when there is a lot of detail or movement, as the VCD video standard does not have enough bandwidth to sufficiently encode the details. Audio must be encoded with MPEG-1, Layer 2, at 224 kbps. You can fit about 69 minutes of VCD content on a standard 80 minute (700 MB) CD-R or CD-RW.

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