Ken Anderson wrote the following: > Question #1 - I am taking a trip in the near future and want to use my > iBook for my own "in flight movie". What are some things I can do to > make sure I get the longest battery life out of it in these conditions? > I do have headphones so as not to disturb my neighbors and run at a > lower volume. I've never use my Book for this before and am unsure > what to expect. I found the best set up to be: while still connected to mains power start all the programs that you will use during the flight and have the windows / program interfaces at the stage where you will use them (and then minimize them to the dock), as well as having the DVD in the drive and started to at least past the legal bits and then put your iBook to sleep (I would also suggest disabling the unused network / internet connections in system prefs by unchecking the boxes next to each type of interface...airport especially as this will otherwise constantly search for new networks and drain battery power). Other notes to consider are that the noise level is really quite high in an aircraft and the volume will need to be near full (at least for these poor ears of mine!) It may sound counterproductive but I use earplugs that you should be able to find in any drug store to cancel the noise of the aircraft and then use headphones with the volume at near max to enjoy the movie... Screen brightness is again dependant on what time of day you fly but it may also need to run at full...or you can wait till the lights go down and most are sleeping...will help tremendously with brightness and sound volume as well as interruptions. unless you are going overseas or completely across the country you may find that there are many distractions that will require sleeping mode again...food and beverage passes of the crew, etc.. I don't have them but it may be worth trying the Bose sound cancelling headsets to see if they are worth the money should you travel often. BTW, you can happily leave your iBook in sleep mode during take off and landing (indeed during the entire trip!) as it will not interfere with any plane electronics in this mode and may be useful when going through security zones of airports. > Question #2 - Are the sizes of the movie able to be changed beyond what > is offered in the menus or are we limited to whatever the disk plays > and or the player decodes? I have personally run the movie in full screen mode as it makes it easier on the eyes. I have always wondered if the full screen mode or the window is better for battery power and without supporting evidence suggest the full screen mode is lower drain. I can only go on the experience of using iTunes visual effects with the same issue (full screen vs. window) where I found that the window mode required much more battery power due to the need to refresh the rest of the desktop and contrast differences as well as any other changes to the desktop. HTH, Richard