ATI Technologies ATI Multimedia Center 8.1 Achieving the best results with Mpeg video recording

Personal Video Recorder 45

Achieving the best results with MPEG video recording

To access MPEG properties

1Click the setup button in the Television control panel, then click the Personal Video Recorder tab.

2In Recording Quality, click the Map Preset... button.

3Click DVD, then click the Edit... button. Capture Wizard (Step 1) appears.

4Enter a name and description (if desired) for the preset.

5Click Next >. The MPEG-specific Recording Wizard pages appear.

6Select MPEG-1, MPEG-2, or ATI VCR, then click Next >.

To select I-frame-only MPEG recording

This uses less CPU, but requires 2 to 3 times the bit-rate, which produces larger files.

1Click the I Frames Only button.

2Click Next> until you reach Finish, then click Finish.

To select I, B, P frame MPEG recording

This uses more CPU, but greatly reduces the bit-rate required for a given level of video quality.

1In the Recording Wizard, set Number of P Frames in Group to 12.

2Set Number of B Frames in Subgroup to 3. (These are typical values; they can be adjusted.)

To record with a minimum number of dropped frames in MPEG-1 or MPEG-2 format, the following settings are recommended. Ranges are given, as some video compresses better than others, depending on the amount of rapid motion and the number of complex scenes.