Bug persist form gutsy to intrepid with 2.6.27-11.

I used to be able to circumnavigate this using udf-tools (restarting it before each time I inserted a DVD-R) but this stopped working a while ago. what I do get now is an error log:

1. when inserting a DVD-R NOTHING happens (not event a syslog entry)

2. when I try to manually mount I get:

[  352.955616] attempt to access beyond end of device                                                            
[  352.955626] sr0: rw=0, want=68, limit=4                                                                       
[  352.962786] isofs_fill_super: bread failed, dev=sr0, iso_blknum=16, block=16            

3. when I try using 'sudo /etc/init.d/udftools restart' I get:
[  552.245246] WARNING: at /build/buildd/linux-2.6.27/fs/sysfs/dir.c:463 sysfs_add_one+0x4e/0x50()               
[  552.245249] sysfs: duplicate filename '254:0' can not be created                                              
[  552.245252] Modules linked in: pktcdvd isofs binfmt_misc radeon drm video output battery wmi sbs sbshc pci_slot container af_packet ipt_REJECT ipt_LOG xt_limit ipt_addrtype xt_state xt_tcpudp xt_conntrack ip6table_filter ip6_tables ipv6 nf_nat_irc nf_conntrack_irc nf_nat_ftp nf_nat nf_conntrack_ipv4 nf_conntrack_ftp nf_conntrack iptable_filter ip_tables x_tables ac w83627hf hwmon_vid lp loop gspca_spca561 gspca_main videodev v4l1_compat evdev parport_pc parport serio_raw psmouse snd_intel8x0 snd_ac97_codec button ac97_bus snd_pcm snd_timer snd soundcore iTCO_wdt iTCO_vendor_support snd_page_alloc shpchp pci_hotplug intel_agp pcspkr agpgart ext3 jbd mbcache sd_mod crc_t10dif sr_mod cdrom sg ata_generic ata_piix 8139cp pata_acpi libata scsi_mod dock 8139too mii uhci_hcd ehci_hcd usbcore thermal processor fan fbcon tileblit font bitblit softcursor fuse                                        
[  552.245336] Pid: 5393, comm: pktsetup Tainted: G        W 2.6.27-11-generic #1                                
[  552.245341]  [<c0131e15>] warn_slowpath+0x65/0x90                                                             
[  552.245350]  [<c024e132>] ? idr_get_empty_slot+0xe2/0x270                                                     
[  552.245357]  [<c024e344>] ? ida_get_new_above+0x84/0x1c0
[  552.245362]  [<c01c752e>] ? find_inode+0xe/0x70
[  552.245368]  [<c0200230>] ? sysfs_ilookup_test+0x0/0x20
[  552.245373]  [<c0200230>] ? sysfs_ilookup_test+0x0/0x20
[  552.245377]  [<c0254972>] ? strcmp+0x12/0x40
[  552.245382]  [<c0200559>] ? sysfs_find_dirent+0x29/0x40
[  552.245387]  [<c0200618>] ? __sysfs_add_one+0x18/0x90
[  552.245392]  [<c02007ee>] sysfs_add_one+0x4e/0x50
[  552.245396]  [<c0201679>] sysfs_do_create_link+0xd9/0x130
[  552.245401]  [<c0201707>] sysfs_create_link+0x17/0x20
[  552.245405]  [<c02c2809>] device_add+0x1d9/0x400
[  552.245411]  [<c02007b8>] ? sysfs_add_one+0x18/0x50
[  552.245416]  [<c02c2a47>] device_register+0x17/0x20
[  552.245420]  [<c02c2afa>] device_create_vargs+0xaa/0xc0
[  552.245425]  [<c02c2b3d>] device_create+0x2d/0x30
[  552.245433]  [<e0c4607f>] pkt_setup_dev+0x1ef/0x330 [pktcdvd]
[  552.245446]  [<e0c4639f>] pkt_ctl_ioctl+0x15f/0x1f0 [pktcdvd]
[  552.245456]  [<c01bf1c1>] vfs_ioctl+0x81/0x90
[  552.245461]  [<c0185801>] ? generic_perform_write_2copy+0x251/0x320
[  552.245468]  [<c01bf356>] do_vfs_ioctl+0x66/0x200
[  552.245472]  [<c0214df8>] ? cap_file_ioctl+0x8/0x10
[  552.245479]  [<c01bf55b>] sys_ioctl+0x6b/0x70
[  552.245483]  [<c0103f7b>] sysenter_do_call+0x12/0x2f
[  552.245488]  [<c0185801>] ? generic_perform_write_2copy+0x251/0x320
[  552.245494]  =======================
[  552.245497] ---[ end trace 516fe9718eb0eae8 ]---

This may just be a udf-tools bug and nothing to do with this problem...