I work with PowerPoint on a daily basis and I am very honored to be a Microsoft PowerPoint MVP. We have a talented team of presentation designers at TLC Creative Services and ThePowerPointBlog is our area to highlight PowerPoint tips, tricks, examples and tutorials. Enjoy! Troy Chollar
Pro’s and Con’s of Webcast Formats
I have been doing a lot of webcast projects lately. Most involve syncing a PowerPoint presentation with video of the presenter. One client’s IT department needed more information to determine which format fit their needs best so I provided this quick run down on the pro’s and con’s of the formats we were discussing:
Flash Legacy (.swf)
Pro: This format is virtually guaranteed to work on all computers, through firewall settings and has an install rating of over 98% of all computers worldwide.
Con: It is not optimized for live video, so it produces larger files and does not stream as well as an .flv
Flash Video/Flash 8 (.flv)
Pro: This format is optimized specifically for video. It produces good size files and streams extremely well (even if file is larger than a .swf it streams much smoother and faster).
Con: Still requires many computers to do the free upgrade, which is permitted through most corporate firewall systems (although it can be problematic in a tightly controlled corporate IT setting).
Windows Media Video (.wmv)
Pro: Optimized to playback on Windows PCs and now works on all Macs that have the Flip4Mac QuickTime add-in (included in a free auto update, so installed on majority of Mac systems). Can be embedded in webpage or forced to launch player application on computer.
Con: Larger file sizes than .flv (similar to .swf), fewer pre-load options (eg: a status bar before playing).
All of this is very simplified information, but it provides a quick overview of some common formats. Stay tuned for a very detailed set of posts on Streaming Media formats I have been working on.
– Troy @ TLC















