Just passed! I become Adobe Certified Expert on Flash CS4!
Like Flex with AIR certification I’d like to share my experience to prepare yourself for ACE exam of Flash CS4.
First of all… EXPERIENCE! You must work, play and work & play with Flash CS4 IDE and Actionscript 3.
More experience you have on Flash development less you must study for the exam and you have more chance to pass.
Obviously, it’s so difficult to know everything about Flash CS4 from all IDE controls to Actionscript 3 and OOP so there are 2 books that could be helpful to solve this “issue”.
With those book you can create a good base to try ACE exam for Flash CS4 but, if you have read Essential Actionscript 3 could be better for Actionscript side and for your daily work ;).
Another good suggestion is to read Help guide of Flash, in fact Adobe made an impressive job on that guide and you can find lots of interesting stuff; you can download a guide PDF file directly from this link.
Try everything, from import PSD or AI files to prepare files for web or desktop application with AIR, because you may find some questions about AIR and own code syntax!
Finally test yourself before real exam with a very good service (I really appreciate it) like acequestions.com with less then $10 you can try how Flash CS4 exam works and also which kind of questions you could find in that certification.
That’s it! Take a look at Adobe site to read all information to become Adobe Certified Expert and… GOOD LUCK!