Hard drives for recorder

[wolffex]

I am looking to upgrade the hard drives on 3 of my recording devices. Problem is I don't know which hard drive to get, like not sure the model number or anything but here is all the info I have:

Device 1
- iRiver h10 5GB version uses (ST650211FX, ST660211FX, & ST650211FX)

Device 2
- iRiver h120 uses 20gb version uses (MK2004GAL)

Device 3
- iRiver h10 20GB version uses (HTC426020G7CE00)

I want to upgrade Device 1's hard drive anywhere from 40GB-120GB but have no idea which manufacturer has it and where to buy it.

I want to upgrade Device 2 and Device 3's hard drives anywhere from 60GB-120GB but have no idea which manufacturer has it and where to buy it.

Does anyone know exactly which one, I did research but I am not that good with hard ware. I just want to buy that harddrive so please tell me which one to buy.

Like for instance just tell me the name & model number of the hard drive I should purchase since I am not really pc savy

 

[kenrivers]

Device 1:
The ST650211FX Flex appears to be a IDE interface drive: http://www.seagate.com/support/disc/manuals/external/st1_pm.pdf
Some specs on the ST660211FX: http://reviews.cnet.com/removable-hard-drives/seagate-st1-6gb-ata/4507-9996_7-31980375.html
The ST prefix indicates they are Seagate drives.
Device 2:
The MK prefix indicates it is a Toshiba drive.
Device 3:
The HTC prefix indicates it is a Hitachi drive.
Those are 1.8" drives.
Some of the ones available are:
http://www.amazon.com/Toshiba-MK1214GAH-internal-ATA-100-buffer/dp/B0015RDLOO
http://www.google.com/search?q=1.8+hard+drive&biw=1280&bih=608&source=univ&tbm=shop&tbo=u&sa=X&ei=gAohUrSLJ9Gz4AP-wYCoDA&ved=0CCkQsxg

You might want to check out these links: http://www.rockbox.org/wiki/HardDriveReplacement#A_1.8_34_Drive_Comparison
http://forums.rockbox.org/index.php?topic=23896.0

Sorry I couldn't recommend a specific drive.