Charles,
The SATA to PATA Converters are not very good. They cause a lot data errors. I had to use them on IDE Drives in order to use SATA RAID on Mobos before the SATA Drives hit the market. They were expensive and caused a lot of data errors.
If you have an SATA Mobo, use SATA Drives. Their price is very close to IDE Drives now.
Take Care,
Richard