Until InstantCake the only methods for upgrading a TiVo were to upgrading from scratch, purchase an upgrade kit or send your unit for professional installation or repair -- many are happy with these techiques and are either technical enough to handle the "from scratch" method or appreciate the value and expertise DVRupgrade provides for upgrading TiVo DVR systems.
If you are somewhat technical, but don't know anything about Linux or the internals of your TiVo and still want to be a 'do-it-yourselfer' you don't need to do it from scratch. Ignore the confusing how-to's, inaccurate and convoluted interactive guides, or wading through cryptic technical discussion groups. Most importantly, consider a solution with no scary adventures which could result in damaging your TiVo or accidentally overwriting the hard drive, rendering your TiVo inoperable!
With InstantCake™, you can have your cake and eat it too. Use our custom CD, your own hard drive and your own computer, and quickly build an upgrade kit customized for your TiVo for just pennies-per-hour of storage! How technical is the process? If you can connect a disk drive to your PC as a secondary IDE master, and can configure your PC to boot from CD-ROM on the primary slave, then you can do it yourself, and save money and time! (Series3 and TiVo HD versions also support SATA devices)