does not contact the second set of read write heads 152 or tape guide 3 tape guide 5 is moveable once the magnetic tape 100 is threaded through tape threading path 141 into a second position illustrated in solid line form to guide magnetic tape 100 into contact with tape guide 3 and the second set of read write heads 152 it is anticipated that numerous alternative embodiments of tape drives can be produced that use either moveable read write heads or moveable tape guides or both the tape drives 300 400 illustrated in fig3 and 4 are simply illustrative of the concepts of the invention and are not intended to limit the scope of the appended claims fig5 and 6 illustrate two configurations of the read write heads 142 145 in order to indicate the alignment relationship therebetween and the azimuth alignment with magnetic tape 100 in order to maintain a substantial angular relationship between the data recorded on the first 112 and second 113 sides of the magnetic recording tape 100 the individual elements in the multitrack read write head 142 145 for each of the two sets of read write heads 151 152 are arranged to align with the respective magnetic orientation 132 133 of the first 102 and second 103 layers of magnetic materials of magnetic recording tape 100 thus the read write elements in read write heads 142 143 are aligned to correspond to the magnetic orientation of the magnetic materials in layer 103 on the second side 113 of the magnetic recording tape the read write elements of the read write heads 144 145 are similarly aligned to correspond to the magnetic orientation of the layer 102 of magnetic.