Article on data rot on CD's

it frustrates me to see the company i work for still reliant on nightly backups (about 1.5gb) of sales data on obsolite drives and tapes (last mass made around 15yrs ago!) and refusing to change type to a newer reliable medium because of cost, dispite the cost of replacing them is less than the cost of one call out for each crash caused by fault hardware - this amounts to several hundreds ??? each time due to lost data, and the cost of lost sales while engineers (contracted only) arrive to reboot and verify data on each tape, this system is over 25 yrs old and it's been patched up so many times it starting to look like a microshafting took place. it's so old one of the terminals in one store was opened to find some document dated 1980 slid inside and was the cause of the extra heat as it had stopped the fan from working and the extra dust had just caused it give up! we have major crashes on average once every 3 or 4 months and minor ones every 2 or 3 weeks. it's a sorry state when the accountant with his abacus can run EVERY part of the company!