[EricBr]

In the last couple of days, I have suddenly had an error when trying to generate a catalog of my library in MOBI format. I am running Calibre v 0.8.58 on Windows 7 Pro x64 with 6gb RAM. I "think" it is a problem with the # of books (~7000) because I can generate a catalog of a library that only has ~425 books in it.

Here is the Error Message (I cut out the Titles, Genres, Chapters and other similar items to shorten the message):
================================
calibre, version 0.8.58
ERROR: Conversion Error: <b>Failed</b>: Generate catalog

Generate catalog
Sections: Authors, Titles, Series, Genres, Descriptions
Catalog_EPUB_MOBI(): Generating mobi for kindle in GUI environment
connected_device: 'None'
book count: 7002
opts:
authorClip: 60
catalog_title: u'_Catalog - 2012.06.30 - MOBI'
connected_kindle: False
descriptionClip: 100
exclude_book_marker: u':'
exclude_genre: u'\\[.+]'
exclude_tags: u'~,Catalog'
header_note_source_field: ''
merge_comments: '::True'
output_profile: 'kindle'
read_book_marker: u'tag:+'
search_text: None
sort_by: None
sort_descriptions_by_author: True
sync: False
thumb_width: u'1.00'
wishlist_tag: u'Wishlist'
creating thumbnail archive, thumb_width: 1.00"
Begin catalog source generation
DPI = 168; thumbnail dimensions: 84 x 112
using default cover for ...
Warning: multiple tags resolving to genre '...':
2951 enabled genre tags in database:
Genre summary: 2799 active genre tags used in generating catalog with 6334 titles
Completed catalog source generation

InputFormatPlugin: HTML Input running
on C:\Users\Eric\AppData\Local\Temp\calibre_0.8.58_tm p_q45vxd\voaygm_epub_mobi_catalog\Catalog.opf
Parsing all content...
Merging user specified metadata...
Detecting structure...
Detected chapter: ...
Flattening CSS and remapping font sizes...
Interpreting class and tag selectors case insensitively in the CSS selector: h|div.description>h|p:first-child
Source base font size is 12.00000pt
Cleaning up manifest...
Trimming unused files from manifest...
Creating MOBI Output...
Serializing resources...
Creating MOBI 6 output
Applying case-transforming CSS...
Rasterizing SVG images...
Converting XHTML to Mobipocket markup...
Python function terminated unexpectedly
(Error Code: 1)
Traceback (most recent call last):
File "site.py", line 132, in main
File "site.py", line 109, in run_entry_point
File "site-packages\calibre\utils\ipc\worker.py", line 192, in main
File "site-packages\calibre\gui2\convert\gui_conversion.py", line 68, in gui_catalog
File "site-packages\calibre\library\catalogs\epub_mobi.py", line 357, in run
File "site-packages\calibre\ebooks\conversion\plumber.py", line 1116, in run
File "site-packages\calibre\ebooks\conversion\plugins\mobi_ou tput.py", line 197, in convert
File "site-packages\calibre\ebooks\conversion\plugins\mobi_ou tput.py", line 229, in write_mobi
File "site-packages\calibre\ebooks\mobi\mobiml.py", line 112, in __call__
File "site-packages\calibre\ebooks\mobi\mobiml.py", line 123, in mobimlize_spine
File "site-packages\calibre\ebooks\mobi\mobiml.py", line 533, in mobimlize_elem
MemoryError
Error in sys.exitfunc:
MemoryError
================================

Any ideas on what my problem might be?

Thanks,

Eric