Provided are a method, system, and program for adjusting tension in a tape media to counter tape dimensional stability errors in a tape media. An embedded in-circuit emulator emulates at least one function of the embedded processor, performs at least one of testing and debugging on the IC, and generates testing results based on the at least one of the testing and the debugging. The host selects a write cyclic redundancy code mechanism and a read CRC mechanism based, at least in part, on the configuration of the memory subsystem. Subsequent combination of the structures with photovoltaic cells allows facile and efficient completion of modular arrays. The other set of document image data, which may again be rasterized image data or image data organized in an MRC layer format, represents a second portion of information for the document that may change.