Internal hardware enhancements  2.3.3 Media  Chapter 2. TS4500 Ultrium Linear Tape-Open and 3592 tape drives  113 These drives improve capacity and performance by writing and reading J5 and J5A logical  format and by using a new 32-channel enhanced ECC recording format with a higher track  density and higher linear density on the same media types. Important:  The TS1155 and TS1150 are not compatible with several older 3592 cartridge  media types: JA, JB, JW, JJ, JR, and JX media types J3, J2, and J1. (MEDIA5, MEDIA6,  MEDIA7, MEDIA8, MEDIA9, and MEDIA10).  TS1155 is not supported on z/OS. The TS1155 and TS1150 drives use the following enhanced Barium Ferrite (BaFe)  second-generation particle media types. The new media can be read/written up to 360 MBps  native sustained data rate (up to 700 MBps at 3:1 compression ratio) in the new 32-channel  Jag 5, 5E, 5A, and 5AE logical format, as listed in Table 2-11. The data-dependent, noise-predictive, maximum-likelihood (DD-NPML) detection scheme  was developed at IBM Research, Zurich, to enable the accurate detection of data errors. These drives feature the following significant hardware enhancements over the previous  models:  GLYPH<SM590000> Thirty-two channel-enhanced error correction code (ECC) recording format. GLYPH<SM590000> Enhanced JD-type media servo pattern. GLYPH<SM590000> Flangeless rollers, which are designed to minimize tape edge damage and debris buildup  by the elimination of the roller flanges. GLYPH<SM590000> Skew Actuator, which allows dynamic skew adjustment of the head to keep the head  perpendicular to the tape.  Table 2-11 Media type and read/write format compatibility Media type TS1155 TS1150 Logical Format read/write Logical Format read/write z/OS Media Type JD J5A J5A-E J5 J5-E J5 J5-E Media 14 JZ J5A J5A-E J5 J5-E J5 J5-E Media 15 JL J5A J5A-E J5 J5-E J5 J5-E Media 16 JC J5A J5A-E J5 J5-E J5 J5-E J4 J4-E Media 11 JY J5A J5A-E J5 J5-E J5 J5-E J4 J4-E Media 12 JK J5A J5A-E J5 J5-E J5 J5-E J4 J4-E Media 13 GLYPH<SM590000> Tunnel Magneto Resistive (TMR head) on the TS1155 and on new version of the TS1150  whereas older generation of TS1150 use a Giant Magneto Resistive Heads (GMR head).  These advanced heads are designed to reduce friction with advanced head coating to  prevent corrosion and to extend head and tape cartridge life.