TRAVELERS LOOKING TO take sensitive documents with them on the road can burn that data to a CD while simultaneously encrypting it using a new product from Ricoh called EncryptEase. Then, they can decrypt those documents using any computer that has an attached CD writer, add to or alter the data, and then burn it back to the same CD while reencrypting it. The twist is, the encryption software and the space for burning the files are on the same disk.

The EncryptEase "intelligent" disk is both a CD-ROM and a CD-R, meaning that it offers both an unwritable, protected space where the encryption software is contained, as well as...