I'm trying to replace the 80 GB hard drive of my Acer Aspire 5520-5290 laptop (Hitachi HTS541680J9SA00 ATA model). All the replacements I've found so far are for the SATA model. I'd like to know if it can be replaced with any generic 2.5" ATA hard drive. I'd also like to know if ATA is equivalent to IDE. Thanks.