Hi, I'm getting a problem, I don't understand what it is, my friend and me didnot find the problem too. It's not a problem of size, because I have it on my computer, and I can easily handle that amount of size. Also, it's not the size limit inside Zope, because I have another data.fs, and it's about 60 000, and all work fine. and it's not the zope files around, because I run under windows, and my server run under linux. so, when I upload the data.fs in my new zope in my computer, the files are not the same, but I assure you that my zope in my local machine is clean. but the proplem is still there. so I think it's in the core of this accurate data.fs 36 000. here you can read --> C:\Program Files\WebSite>"C:\Program Files\WebSite\bin\python.exe" "C:\Program F iles\WebSite\z2.py" -D Traceback (innermost last): File "C:\Program Files\WebSite\z2.py", line 449, in ? exec "import "+MODULE in {} File "<string>", line 1, in ? File "C:\Program Files\WebSite\lib\python\Zope\__init__.py", line 109, in ? DB=ZODB.FileStorage.FileStorage(Globals.BobobaseName) File "C:\Program Files\WebSite\lib\python\ZODB\FileStorage.py", line 301, in _ _init__ self._pos, self._oid, tid = read_index( File "C:\Program Files\WebSite\lib\python\ZODB\FileStorage.py", line 1358, in read_index name, pos) File "C:\Program Files\WebSite\lib\python\ZODB\FileStorage.py", line 218, in p anic raise CorruptedTransactionError, message ZODB.FileStorage.CorruptedTransactionError: C:\Program Files\WebSite/var/Data.fs data record exceeds transaction record at 34224435 C:\Program Files\WebSite>