PDASmart has announced the availability of a 100 gigabyte hard drive upgrade for fifth-generation iPods. The PDASmart 100GB iPod upgrade installs without modification in any 60GB or 80GB 5G (video) iPod. For 30GB 5G iPods, a new rear casing is required to allow for the slightly larger drive size. The upgrade is said to extend storage capacity to 25,000 songs or 125 hours of video. The 100GB upgrade for 60GB and 80GB iPods is priced at $275 for a do-it-yourself kit, which includes the Toshiba drive and tools necessary for the installation. A mail-in installation service is available for $10 extra. The upgrade for 30GB iPods is only available as a mail-in service for $300.