Memorex UK Ltd has introduced 1Mb, 2Mb and 4Mb memory cards for various models of the IBM System 38 at around UKP2,800 per megabyte, and announced the 3682, an IBM 3380-E compatible disk drive with a data transfer rate of 3Mb per second, for volume delivery in the second quarter. The 256K RAM-based memory cards feature error checking and correction, and come with a life-time warranty which includes free maintenance. According to System 36 and 38 division marketing manager David McGhie, the forthcoming release of CPF, version 8, requires more memory than version 7, and users moving over to the new operating system release will find the cards a considerably more attractive alternative to costly model upgrades if they wish to maintain, or even improve, the performance of their systems. The thin film head 5.04Gb 3682 disk drive – up to four, 20.16Gb, can be linked together – has two head disk assemblies each with two independently addressable actuators. Memorex claims the drive offers 15% better performance than the IBM 3380-E and says that it and the System 38 memory cards will each be 20% cheaper than the IBM equivalent.