Hi, The people I know of who are using the hbook ntuples are Art, Guy and Matteo and I've cc'ed them in this mail. As you can see from the list below, the disk space occupied is roughly 1 TB, distributed over two AWG and one EC disk. As Oliver already pointed out in a previous posting, we'd like to keep the hbook files until the hadronic mass moment analysis is accepted for publication - just in case we get asked to do some additional checks. However, it'd be ok with Oliver and me to gzip the generic BB MC which should free up ~300GB. Below is a list of all the hbook files I know of: [shire01] /nfs/sulky10/g.ec.u05/users/henning/output > du -k . 65668 ./bsgamma_new2002 204393 ./vubmix 5882728 ./b0cocksp4_vub 4392939 ./bpcocksp4_vub 108129 ./bkstargamma 76617491 ./data2000new 27647637 ./latestcock 2134944 ./vubmc 895692 ./resovubmc 201193 ./brecovubmix 134640728 ./data2001new 96364448 ./data2002new 21607961 ./data_offnew 218089 ./brecovubnonres 435097 ./vubnonres 371417138 . The b0cocksp4_vub and bpcocksp4_vub is a cocktail production by Alessio and not used by us. It also contains some 'old' files, i.e. with Ks bug, so I suppose this could be deleted (but it's only ~10GB). Concerning *vub*, I just kept the naming scheme by Alessio but am not quite sure what it is exactly. The was some email exchange with Alessio and Concezio about this on this mailinglist some months ago. The unskimmed generic BB is in [shire01] /nfs/sulky26/AWG23/ISL/henning/sx-080702 > du -k . 33352056 ./genbb/genb0/new/2000 87451104 ./genbb/genb0/new/2001 71945872 ./genbb/genb0/new/2002 192749032 ./genbb/genb0/new 192749032 ./genbb/genb0 39246344 ./genbb/genbch/new/2000 118959224 ./genbb/genbch/new/2001 74366034 ./genbb/genbch/new/2002 232571602 ./genbb/genbch/new 232571602 ./genbb/genbch 425320634 ./genbb 31061856 ./decgenbb 456452471 . and [shire01] /nfs/sulky13/AWG37/ISL/henning > du -k 126906288 ./decgen Cheers, Henning