TechSmith Screen Capture Codec是Camtasia Studio的一个组件，用于压缩Camtasia Recorder中的视频文件，最大的优点是可以保证图像的质量，截取的屏幕经过多次压缩，还能保证高质量。

Camtasia Studio是TechSmith旗下一款专门录制屏幕动作的工具，它能在任何颜色模式下轻松地记录屏幕动作，包括影像、音效、鼠标移动轨迹、解说声音等等；另外，它还具有即时播放和编辑压缩的功能，可对视频片段进行剪接、添加转场效果。它输出的文件格式很多，包括Flash(SWF/FLV)、AVI、WMV、M4V、CAMV、MOV、RM、GIF动画等多种常见格式，是制作视频演示的绝佳工具。

TechSmith公司出品了很多精品软件，包括著名的抓图软件Snagit，而Camtasia Studio是该公司一个专门用于录制屏幕动作的软件，且TechSmith还专门对Codec进行开发，研究开发了属于自己的一套压缩编码算法，叫做"TSCC" (TechSmith Screen Capture Codec)，专门用于对动态影像的编码！

其实Camtasia Studio已不仅仅是一个录屏工具了，它包括了5个组件：Camtasia录像器、Camtasia菜单制作器、Camtasia音频编辑器、Camtasia剧场及Camtasia播放器。它可以作为视频编辑工具，可以将多种格式的图像，视频剪辑连接成电影，以多种格式输出；并可将电影文件打包成EXE文件，在没有播放器的机器上也可以进行播放，同时还附带一个功能强大的屏幕动画抓取工具，内置一个简单的媒体播放器等。

TechSmith Screen Capture Codec (TSCC)
When talking about codecs, it's helpful to understand three terms:

Codec is the abbreviation for compressor/decompressor. Codecs are applied to audio, video and image files to compress their size. The benefit is that the files don't use as much disk space when stored or as much network bandwidth when streamed. To open a compressed file, the same codec must be used to decompress the file.

Compression is the coding of data to reduce file size or the bit rate of a stream.

Lossy is a compression technique that decreases image, audio, or video quality in order to reduce the file size.

So, the video codec is responsible for compressing the video frames during recording and for reconstructing the video frames during playback. Often, the makers of a codec will sacrifice image quality in order to achieve higher compression and smaller file sizes. These codecs are termed "lossy" and are incapable of reconstructing the video at its original fidelity. Most commonly available codecs for recording screen videos are lossy, resulting in screen capture videos with reduced image quality and a "fuzzy" appearance.

Camtasia Studio includes TechSmith's own Screen Capture Codec (TSCC), providing lossless image quality coupled with excellent compression ratios. Since the TSCC is lossless, it preserves 100% of the image quality, even through multiple decompression/recompression cycles that are typical during the production process. The TSCC is optimized for screen capture so that the resulting files are small and highly compressed.

The compression codec also affects the capture frame rate or speed of compression. The high frame rates required for smooth video increase the need for high compression speed. High color screens also impact compression speed. The TechSmith codec offers exceptional compression speed at all color depths - unlike, for example, some codecs that only support 8-bit color. (The Microsoft RLE codec is lossless but is restricted to 8-bit color.)

This means you benefit from TSCC features:
Even codecs that are more widely distributed do not perform as well as the TechSmith codec to deliver the highest quality, smallest file size and fastest compression speed.

TSCC Feature: Lossless compression
Benefits: 100% quality is required for screen recordings to be readable. Survives endless editing cycles.

TSCC Feature: Optimized for compressing screen recordings of office-style applications
Benefits: High compression ratios. In other words, small file sizes.

TSCC Feature: Fast compression speed
Benefits: High capture frame rates. In other words, smooth high quality videos in terms of motion (like cursor movement).