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A Software Key to Lock Up Data

A Software Key

To Lock Up Data

Q. I keep a spreadsheet file on my laptop with the passwords to all my online accounts and the Social Security numbers of my family members. I have it password-protected, but I would like a more secure file-encryption program. I tried PGP Desktop, but it seemed capable of doing much more than I needed. Is there a simpler program?

A. PGP, which stands for Pretty Good Privacy, is a powerful encryption program used to protect sensitive data. The most recent commercial version of the PGP Desktop program can automatically encrypt e-mail, instant messages, archived files and more. There is a $99 version of PGP Desktop for home users with newer Windows and Macintosh operating systems (www.pgp.com) and an older version that works with many operating systems, free for noncommercial use, at www.pgpi.org.

If you just need to encrypt one or two files, there are several other options like folder and file-locking programs. Everstrike's Lock Folder software, one of many folder-encrypting programs available, puts a user-friendly interface on its password protection program for Windows files and sells for $25 at www.everstrike.com.

Some operating systems include encryption abilities. Windows XP Professional includes an Encrypting File System feature that will password-protect files and prevent them from being moved or copied; details on using the feature are at support.microsoft.com/kb/307877/EN-US. Apple includes in Mac OS X an encryption protection feature called FileVault for a user's entire home folder; an overview of FileVault can be found at www.apple.com/macosx/features/filevault.

If you use Windows XP Home Edition, you can add a level of protection to any sensitive file by moving it into a password-protected compressed folder. Just right-click on the desktop and select New Compressed Folder, then name and open the folder.

Find the file you want to protect and right-click to drag it into the compressed folder's window, while selecting the Move Here option from the pop-up menu. Once you have the file in the compressed folder, go to File in the folder's menu bar and select Add a Password. Once you have added a password, the file cannot be opened without it.

Music on the Palm

In Your Hand

Q. I have a new Palm hand-held and I want to add music to it. I know I can rip songs from CD's to add to it, but can I also load music from an online store?

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A. RealPlayer, which makes audio software for Windows and Macintosh systems, has a version that works on many Palm devices and can play songs purchased from the Real Music Store. (A list of devices that work with the Real Music Store can be found at music.guide.real.com/realplayerdevices.)

The Real software is included on some Palm software CD's, but there are other music players that work on the Palm operating system as well, including Kinoma Player 3 EX (www.kinoma.com), Pocket Tunes (www.pocket-tunes.com) and AeroPlayer (www.aerodrome.us).

Online music stores use a variety of file formats and copy-protection codes for their digital music downloads, so check your program's help guide for the formats supported. Some audio software may not work with copy-protected files, but is fine for music downloaded from sites that do not use copy-protected files, like the Internet Underground Music Archive (www.iuma.com) and Audio Lunchbox (www.audiolunchbox.com).

If you want to carry a lot of music files around on your hand-held, you may need to get a memory expansion card so you have room to store the song files. PalmOne, the maker of Palm-powered organizers, also sells a variety of expansion cards at www.palmone.com. A card that gives you an extra gigabyte of storage space sells for about $130.

Questions about computer-based technology may be sent to QandA @nytimes.com. This weekly column will address questions of general interest, but e-mail and letters cannot be answered individually.

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