Q. I keep getting error messages when I try to put a video file up on Flickr. What might be the problem?
You can now share short videos as well as still pictures on the Flickr photo-sharing site, but you'll find a few restrictions. For one, only people who have a $25-a-year Flickr Pro account can upload video.
The video clips must be smaller than 150 megabytes and run no longer than 90 seconds. (If longer clips are uploaded anyway, Flickr will play only the first 90 seconds.)
If Flickr says it cannot display or process the video after it has been uploaded, try saving the video in a different format and uploading it again. The site has several tools for uploading files, including a Web form. There are links to the uploading tools at www.flickr.com/tools and if one doesn't work, try another.
Q. Some global positioning systems cost a couple hundred dollars and some are nearly a thousand bucks. Are these more expensive models worth it?
If a simple device that says when to turn left or right is all that's needed, save money and go for a lower-priced GPS unit.
Even the basic models, $200 or less from many manufacturers, come with preloaded maps for the continental United States and color screens around three inches wide. Other features, like JPEG picture viewers and currency converters, are also available in some of the more affordable units. It may also be possible to purchase memory cards or subscription services to add on more travel programs and features later.
As with most electronic devices, the more bells and whistles, the higher the price. GPS units that offer larger screens, FM transmitters for an MP3 player, real-time traffic and weather updates and points of interest along the route cost a bit more. Some of the midrange models also have a text-to-speech function that can read the actual names of the streets during voice navigation instead of just issuing generic “turn right” or “turn left“ orders.
Major GPS makers like Garmin (garmin.com), Mio (mio.com) and Magellan (magellangps.com) have product comparison functions on their Web sites.
TomTom lets one choose specific features and then suggests appropriate models at www.tomtom.com/productadvisor. J.D. Biersdorfer, New York Times