Flash CS5.5 includes a new compiler caching feature. Currently only for Fonts and Sounds, specifically .mp3 sounds. In previous versions of Flash, every time you did a test movie or published, every embedded font and sound item (that needed re-compression) would get recompiled, even if nothing had changed.
In Flash CS5.5, the first time a document is compiled, the compiler will cache all the embedded fonts and sounds items (the need re-compression) into a cache file. On subsequent test movie or publish, the compiler will use the cached asset, thus reducing the compile time noticeably.
This cache file is first stored in memory, if the item is small, and then written to disk when exceeding a certain size or the item is large. Those settings can be accessed through the Publish cache section in the Preferences.
Have a question but don't want to ask it publicly? If you are a prime member just ask right here and we will get back to you within 48 hours. Not prime yet? no worries you can ask publicly below.