Adobe permire CS4 does not have an output compressor, so you need to install Adobe Media Encoder to output.

Media encoder CS4 is a video and audio coding application that encodes audio and video files in various distribution formats.

Adobe for Adobe Flash Player？ FLV | F4V

H.264 for video iPod, 3GPP mobile phones and PSP devices.

MPEG- 1 for CD-ROM production (Windows only)

MPEG-2 for DVD production (Windows only)

For apples? QuickTime？

For Windows Media (Windows only)

You can find the installation program in Thunder.

Later software information can refer to my Baidu space.