my crappy computer only has about 120GB of harddrive,

now I'm fighting with 20-30GB left, I keep adding stuff and deleting,

I don't have an external harddrive at the moment, but I have about 100 DVDs that carry 4.7GBs each,

Can I rely on this plethora stack of CDs to store files?

only downside I noticed so far is the time it takes to write my stuff onto it