When recording on tape media, writing song titles, etc. on the index sheet with an oil-based pen can cause problems when re-recording later. This item is an index sheet for DAT tapes that can only be used on the back side, and other items. DAT enthusiasts, please consider this. SONY DAT 98 sheets Odd pieces 4 sheets Homemade sheets 6 sheets Spare labels 25 sheets (last photo) The blue-lettered DAT sheets have time indications of 46/60/90/120, so you can modify and use them as needed. The photos don't show them well, but they are all white.